Ryoba Aishi

Ryoba Aishi Gallery Illustrations Quotes [[:Ryoba Aishi/|]]

202X by Mulberry.
2005 by Guillermo Varela Iglesias.
1989 by Mulberry.
Ryoba Aishi
Alias	Ryoba-Chan Ryo-Chan
Role	Protagonist (1980s Mode) The Mother of Ayano Aishi (202X Mode)
Personality	Devoted Lovesick (according to the official website)
Age	18 (1980s Mode) 37 (2008) 55 (202X Mode)
Love	Jokichi Yudasei (Husband)
Strength	Dependent on Physical Education
Appears	1980s Mode
Voice	Michaela Laws (2015 - 2023) Lizzy Hofe (Childhood Lesson)

Ryoba Aishi is the protagonist of 1980s Mode in Yandere Simulator. She is the 10th Aishi Family member and the mother of Ayano Aishi.

In the story mode, she's overseas with her husband for 10 weeks, chasing down The Journalist.

There are three times she will make an appearance: in one of the game's endings, in a post-credits sequence, and in 1980s Mode.

Appearance

Ryoba's default appearance features fair skin, black hair, and black eyes. When let down, her hair reaches her hips but is usually tied into a loose ponytail with a white hair tie. Her hair reaches her waist on both sides, and one of the strands from her bangs reaches her nose. Her face is usually gentle, but when her true nature is revealed, her eyes become empty and soulless, and her smile becomes unsettling.

In the Story Mode, Ryoba appears as an adult woman. Her outfit consists of a long gray skirt, a dark purple sweater, a dark gray coat, a pair of boots, and a silver heart necklace. During this time, Ryoba also cut her hair short.

In the intro, her outfit consists of a dark purple T-shirt and dark blue jeans. She wears a bright purple apron and dark purple slippers at home. The most dominant color in her clothes is purple, because it's her husband's favorite color.

In 1980s Mode, Ryoba appears as an 18-year-old schoolgirl. As seen in the intro, in the flashback from her school years, she wore uniform number 6. However, YandereDev has considered making "stricter" uniforms for 1980s Mode, which would have longer sleeves and a longer skirt. Ryoba also didn't wear the same black stockings as Ayano, but instead wore black knee-length socks. According to Chigusa, Ryoba has a "killer figure".

When performing the Light Music Club mini-game, Ryoba uses a red guitar.

In a video showing Ayano's childhood, Ryoba appears younger than she is in Story Mode, probably around her 30s, wearing a white shirt, pink skirt, and pink heels.

Previous

Before the June 30th, 2025 build, when performing the Light Music Club mini-game, Ryoba wore a dull navy blazer with dullened teal outlines, a deep blue bowtie, a gray-white skirt that reached above her knees, and her club accessory. Her outfit was a reference to Yandere Simulator back in 2014. She used a SAIKOU keytar in the sprite.

Before the January 1st, 2025 Build, she used the in-game Guitar as her instrument in her Light Music Club mini-game.

Personality

Ryoba Aishi is the mother of Ayano Aishi, the protagonist of Yandere Simulator. Ryoba attended the same school as her daughter in 1988-1989. She has lived in the same neighborhood for her entire life.

She is a cheerful and friendly woman who seems to get along very well with everyone in her neighborhood, although nobody seems to know very much about her, not even her next-door neighbors.

She is a very private woman who never talks about herself, and never divulges many details about her occupation...but she's always willing to talk for hours about her husband and how much she adores him.

— Description on official website.

According to her profile on the Character Page of the Game's Website, Ryoba is "Lovesick" and her weakness is being "Obsessive," just like Ayano.

Ryoba is a Yandere, someone who loves a certain person so much that they are willing to threaten, harm, or kill any other person who seems interested in their love interest. She has the same fictional mental illness as every woman in the Aishi bloodline. Under normal circumstances, she is incapable of sincerely caring about the well-being of anyone other than herself.

Ryoba always dreamed about a boy she knew was her "one". One day, she met the same guy in her school and fell madly in love with him, thinking of him every day. She seeks to eliminate anyone who threatens to take Jokichi away from her because she doesn't want to lose the one thing that makes her feel alive.

In 1980s Mode, Ryoba is shown to be murderous, cold, and brutal, as she doesn't hesitate to harm or kill any girl who threatens to take Jokichi away from her. She shows no remorse for any of her actions. She has zero tolerance for and is disgusted by any girl who expresses romantic interest in Jokichi. She firmly believes that violence is the only solution to her problems. This suggests that she cares only about winning Jokichi's love, as being with him was the only way for her to live, and values his life over others.

Ryoba also cares about her reputation and how others perceive her. She killed Sumire Saitozaki and made the other rivals' deaths look like accidents, without any students witnessing her. When The Journalist confronted Ryoba behind the school, she desperately tried to pretend that she didn't do anything, but failed. During her murder trial, Ryoba convinced the public that the Journalist falsely accused her of Sumire's murder. She did this so that the public would perceive her as innocent and avoid punishment for her crimes. Otherwise, Jokichi would know her true nature and stay away from her, and she would lose her only reason to live.

Ryoba is also manipulative, as she made other students who admired Komako Funakoshi turn on her by gossiping about her, befriended Sonoko Sakanoue to make her believe she is a good person, and even made the whole court believe that the Journalist only accused her of murder for the sake of sensational headlines. Ryoba is also shown to be extremely vindictive whenever she is crossed, as evidenced by her vow of revenge against the Journalist for sabotaging her chance to win Jokichi's love in her monologue after the trial, and her relentless pursuit of him to America, as implied by Basement Tape 10. She will not rest until she kills those who wronged her.

In-game, Ryoba is "Devoted", which is code for "Yandere", just like Ayano.

According to YandereDev, Ryoba's cutesy and feminine façade was a result of her grandmother raising and teaching Ryoba many techniques and tricks related to getting away with murder.

Ryoba views people who disrespect her as if they were crying babies. Nobody gets angry at a crying baby, and they aren't trying to be annoying. They just are not intelligent enough to understand what they should and shouldn't do. That is how Ryoba compares crying babies to people who are disrespectful to her.

Background

Ryoba was born on October 10th, 1971. Her mother—Ayano's grandmother—was a yandere who kidnapped and kept her husband in her Basement, keeping him tied to a chair, and her father—Ayano's grandfather— was a shell of a man who was mind-broken by his wife into loving her unconditionally. Dozuki also never hid from Ryoba what she did to her father. As a result, Ryoba feels pity for her father, as well as resentment towards Dozuki for being lazy and selfish, and for neglecting her and her sister..

Due to her mother's selfishness and neglectful attitude, Ryoba was mostly raised by her grandmother, who taught her to be independent, while slipping in valuable information about murder, getting away with murder, seduction, and everyday things. This resulted in Ryoba adopting her grandmother's personality, appearing cute and feminine with a colder, sadistic side. Likewise, Ryoba respected her grandmother so much that she wanted to raise her sister, as she wanted to "surpass" Dozuki for doing a basic act, while easing Kataba's burden of raising another child.

Since early childhood, Ryoba has suffered from an inexplicable, incurable condition that left her with a perpetual sense of being empty, hollow, and incomplete. She was never able to experience satisfaction, fulfillment, or happiness. She was not able to experience emotions in the same capacity as other people. Kataba had likely told her at some point that she was exactly like her when she was a child and that, one day, she'd meet someone special who would "complete" her, just like she did. Ryoba pretended to be a normal person to avoid drawing negative attention from others, but was never able to feel any degree of empathy towards other humans.

Every night, she has the same dream where she meets a boy, falls in love with him, starts a family, and lives happily ever after. She believed this dream was showing her the future, as she thought it was showing her the person she would be with for the rest of her life. She spent years fantasizing about what it would be like to meet him. Ryoba began attending Akademi in 1988, at the age of 17. During this year, she met her Senpai from her dream, Jokichi Yudasei. Since there were no girls interested in her Senpai yet, she didn't cause any trouble. During her first year, Ichiko Saikou, who was in the third year, became friends with her.

Ryoba spent her entire first year stalking her Senpai, building up the courage to speak to him. She also began filling her Senpai Shrine with objects that Jokichi had touched or owned. During her second year, Ryoba found out that Sumire Saitozaki had a crush on Jokichi. To eliminate Sumire, Ryoba lured her into the east third-floor girls' bathroom and killed her with a knife. Although she disposed of all the evidence proving that she was the killer, Ui Tunesu witnessed Ryoba take the knife from the Cooking Club. When confronted about it, Ryoba claimed that someone had taken a knife from the Home Ec Room and put it in the Cooking Club by mistake, and that she was returning it, which Ui did not fully believe. Alongside that, Ryoba had failed to clean up a single bloodstain in the bathroom, which was enough for the police to label Sumire's disappearance as a potential murder. News of the case spread throughout the nation and eventually attracted a local Journalist.

After successfully eliminating her first rival, Ryoba continued to stalk Jokichi and any girl who spoke to him, constantly finding a new rival. Due to the attention that her first murder caused, Ryoba decided to use non-lethal methods to eliminate five of her rivals. At the same time, she made the other five rivals' deaths appear to be accidents. Due to Ryoba's actions, her rivals had to withdraw from school due to bullying, were expelled, and in some cases, "mysteriously stopped coming to school." The poison Ryoba used to kill Sumiko Tachibana was from the Science Lab. Additionally, the contraband (eg, alcohol or cigarettes) she used to expel Teiko Nabatasai was found in the school. Ryoba joined the Light Music Club in her second year in order to gain Ai Doruyashi's trust. Even after she killed Ai, she remained in the Light Music Club up until the trial, in which she returned to being clubless during the rest of her years at Akademi. Due to these circumstances, Ryoba is skilled in playing the piano and guitar.

The Journalist frequently saw Ryoba running with a mop and a bucket to avoid making the murder too obvious, as she did with Sumire. According to The Journalist, Ryoba was using manipulation, intimidation, and even violence to sabotage Jokichi's love life.

Ryoba never once got pushed by a student council member or alarmed other students about her behavior in the canon timeline. She canonically completed all her rivals' tasks. After eliminating all her rivals, Ryoba planned to confess her love to Jokichi underneath the cherry tree behind the school. Still, she was confronted by The Journalist, who convinced the police to arrest her before she could confess. When she spotted the police and the Journalist, she reacted negatively, pleading not to be taken to court and trying to convince them that she had done nothing wrong. After being arrested, Ryoba began planning how she would paint herself as someone innocent. She also waived her right to a lawyer, choosing to represent herself during the trial instead, as she did not trust a lawyer to be competent and make no errors.

Ryoba used her manipulative skills during the trial. She called the Journalist "a dirty pervert who enjoyed leering at schoolgirls" and "a fame-seeking yellow journalist." She claimed that he had only accused her of murder for sensational headlines. Ryoba also argued that the Journalist wanted to gain the same respect that Sonoko Sakanoue got after stopping a killer, and he was deeply insecure about his apprentice accomplishing more than he did. The Judge believed her and declared her innocent. Ryoba stalked The Journalist after the trial when he tried to escape the press by hiding in an alley behind the courthouse. When she found him, she threatened his life by saying it would be easy to make his death look like a suicide, before she turned around and left without another word.

Ryoba again planned to confess her love to Jokichi. Still, the case raised a lot of suspicion about her and negatively impacted her reputation at school. Ryoba became worried that if she confessed to Jokichi, he might reject her, and she wouldn't be able to resist the urge to kill him and then herself. Ryoba didn't want to risk that outcome, so to reduce her chances of failure to 0%, she decided to kidnap him instead. Additionally, she also obtained her diploma from Akademi through an accelerated graduation program. However, she never attended her classes after the trial.

As revealed in the 1st Basement Tape, Ryoba kept Jokichi in her basement and tied him to a chair, just like her mother did to her father. However, unlike her mother, Ryoba decided not to mind-break Jokichi, as she always felt bad for her father. Instead, she kept him tied up for a long time until she was 100% sure that he would never try to run away or leave her. When Ryoba eventually forced Jokichi to be in a "relationship" with her, he married her, took her surname, and officially moved in with her. Due to a plot-related reason that will be revealed in the true ending, Ryoba chose to give birth much later in life than the majority of her ancestors, who all became mothers at around 19 or 20, as opposed to Ryoba giving birth to her daughter at 37.

As revealed in the intro and a video about Ayano's childhood, Ryoba told Ayano the same thing her mother had told her. She told her that she was exactly like her when she was a child, and that, one day, she'd meet someone special who would "complete" her, just like she did. However, she never told her what she had done in the past, as she had promised Jokichi never to reveal her actions to her daughter. Because Ryoba was aware of Ayano's condition, she didn't worry about her, unlike Jokichi, who desperately wanted to help their daughter and be a normal family. Jokichi took Ayano to various doctors and hospitals. Ryoba tried to explain the Aishi condition to Jokichi, but he didn't want to listen to what she was saying. Ayano eventually began to pretend to be "normal", which made Jokichi stop worrying.

As revealed in A Childhood Lesson, Ryoba kept the promise she made to Jokichi, but still found ways to "teach" Ayano how to get away with murder. At some point during Ayano's early childhood, when they were making dinner together, Ryoba "accidentally" cut her finger with a knife, spilling blood on the cutting board. She asked Ayano to clean the blood while she got a bandage. When Ayano came back after cleaning the board with soap and water, Ryoba told her that the blood was still there. She then took luminol from the shelf and sprayed the place where the blood was. Afterward, Ryoba turned off the lights and used a black light to reveal the bloodstains to Ayano. Ryoba turned the lights back on, took out a bottle of hydrogen peroxide, sprinkled the place where the blood was, and wiped it clean. Afterwards, she turned off the lights and the black lights back on, showing Ayano that the bloodstains were no longer there. In this way, Ryoba taught Ayano how to clean up blood after murders.

Even 30 years after the events of 1980s Mode, Ryoba never moved out of her hometown. The Journalist, who decided to try once again to deliver justice to her, began following Ryoba around town for a week. He realized she was stalking someone and figured out that Ryoba's prey was a young woman who had recently graduated from high school. Shortly before The Journalist began to follow Ryoba, this woman casually flirted with Jokichi, and Ryoba began to stalk her. She was probably a cashier at a convenience store or a co-worker. However, there's no guarantee that she was actually in love with Jokichi; as a yandere, Ryoba was so overprotective of her husband that she assumed any girl who was moderately polite to him, let alone flirted with him, was in love with him. She was suspicious of any girl who seemed to be too sweet to her husband. She probably committed a handful of murders between 1980s Mode and Story Mode. It is unknown if Ryoba killed this particular woman or let her go.

As revealed in the 10th Mysterious Tape, Ryoba caught The Journalist following her. He followed Ryoba into an alley but lost her in the shadows, and she snuck up on him from behind. He then turned and ran to the airport, but Ryoba followed him and saw him board a plane bound for America.

As revealed in the 10th Basement Tape, Ryoba came back home after following the Journalist and caught Jokichi browsing their old tapes for an unknown reason. Ryoba told Jokichi that she had seen someone she hadn't seen in decades and then informed him that they were going to America. When Jokichi asked about their jobs, Ryoba reassured him that she had already called their boss and told him, and he was very understanding. Ryoba and Jokichi's jobs are unknown, but they will be revealed in one of the game's endings. It is known that they both work at the same company, but in different positions, and that technology plays a significant role in Ryoba's job. Jokichi is concerned, as this is the day before Ayano starts her second year. Still, Ryoba reassures him that if her daughter is anything like her, she'll have no problems whatsoever taking care of herself. Ryoba hopes Ayano will meet "someone special" and have a boyfriend by the time they return. Jokichi responds negatively, but quickly changes his mind after being intimidated by his wife. At the end of the recording, when Jokichi expresses that he wants to pick up the tapes so that Ayano won't find them, Ryoba tells him not to bother, as there's a part of her that hopes she finds them.

Relationships

Ayano Aishi

Main article: Ayano Aishi

Ayano is indifferent to her parents. She believes her mother to be a lovely and innocent human being, as she doesn't know what her mother did in the past. Ryoba is aware of Ayano's lack of emotion. She loves and adores her daughter dearly because she is a physical manifestation of the love between her and Jokichi. This is also because Ryoba didn't want to be like her mother, so she was a lot more loving and attentive to Ayano. If Ayano died, she'd feel pain on another level because she is a manifestation of the love between Ryoba and Jokichi, as well as the same pain as any mother who has lost her child. She'd look at anyone who harms her daughter the same way she'd look at anyone who harms her husband. She'd probably attempt to take revenge for her daughter's death by going after whoever killed her. However, if Ayano is either expelled or arrested, she wouldn't be sad; instead, she would be disappointed, as she believes she has taught her daughter better ways to be a Yandere. If there were prisoners in the basement when Ryoba returned, she would support Ayano in doing whatever she felt was necessary. In a hypothetical situation where Ayano got bullied as a child, Ryoba's maternal love for her daughter would be so strong that she would want to kill the bullies and their parents. However, Jokichi managed to get Ryoba to simply talk to the parents, rather than resorting to violence.

Ryoba has also taught her daughter to avoid people snitching by having zero confidants, associates, or liabilities. She doesn't "explicitly talk" about "those days" (1980s Mode) with her daughter.

Knowing that her daughter has just reached the same age as when Ryoba got her Senpai, Ryoba would be very curious to know if Ayano is going through a similar experience. Ryoba may call Ayano every Saturday to check on her beloved daughter. During these checkups, she would learn that her daughter had found someone special. She would be extremely excited and offer advice related to subjects such as reputation. Also, Ryoba would mail practical gifts to her daughter. YandereDev has stated that he believes Ryoba may have hinted to Ayano how to get away with murder without being upfront about it. She would have aided Ayano with her crimes if she were still in Japan during the events of 202X Mode.

If Ryoba sees Ayano romancing Taeko Yamada, she would be delighted to see that her daughter has found "love" with someone. She gets her values from her own experiences. Additionally, if Ryoba saw her daughter dressed as a delinquent or a bully, her first assumption would be that it is some ploy to acquire her Senpai.

If forced to choose between Jokichi and Ayano, she'd pick Jokichi. Ryoba would kill her daughter to protect her husband. The same could be said of Ayano, who would kill both of her parents as a last resort.

There might be a specific cutscene between her and Ayano if the latter uses pacifist methods in eliminating her rivals.

In a hypothetical situation where a student council member pushed Ayano, Ryoba would be angry on the inside, but never express her anger in any way. She would "politely" tell the student council member not to push her daughter, with a threatening tone.

If her daughter saw the gravure magazine in which she was featured, Ayano would be surprised, but not necessarily shocked. She understands that her mother is a beautiful woman.

If Ayano were to mindbreak her Senpai, Ryoba would be disappointed. She would also feel Ayano was a failure.

Jokichi Yudasei

Main article: Jokichi Yudasei

Ryoba deeply cares for Jokichi's well-being. She refused to mind-break him because of the pity she felt for her mind-broken father, kidnapping him only as a last resort because of The Journalist. She dismisses mind-breaking Jokichi as an option, only considering it as a last resort in the case of him cheating on her—where she'd also kill Jokichi's mistress—reporting her to the police, or divorcing her. If he assaulted her, it would be a very likely outcome as well. Although it was said they got married in secret without a fancy ceremony, Ryoba later released Jokichi from the basement and had a proper marriage ceremony.

Ryoba and Jokichi arguing about their daughter.

While Jokichi has some affection for her, he's also terrified of her and feels there should be no more Aishi women. He doesn't dare go against Ryoba due to being aware of what she's capable of, and quickly corrects himself if he thinks he has accidentally said something wrong about their quiet daughter. She and Jokichi have argued when it came to the topic of Ayano's childhood lack of emotion, as Jokichi saw it as an issue, while Ryoba did not.

Jokichi knows that Ryoba will stalk any woman who flirts, shows interest in, or is even friendly towards him. He often avoids interacting with women unless necessary. He shows his wedding ring if a woman persistently attempts to pursue him. However, she wouldn't feel threatened if Jokichi gave his attention to an animal or a small child.

In the canon timeline, Ryoba did not give Jokichi any romantic notes or gifts. However, she did steal his underwear by sneaking into the boys' locker room and kept it in a shrine.

Ryoba did not rape or sexually assault him while he was in her captivity.

If Ayano were to kill Jokichi, Ryoba would retaliate by killing her.

Ryoba would be willing to take a vital organ from Ayano to save Jokichi's life.

The Journalist

Main article: The Journalist

Their backstory and how they interacted are told throughout the Mysterious Tapes. There's some more information on the Basement Tapes.

Ryoba doesn't kill the Journalist right away after the court case, and he lives until sometime shortly before Ayano's first day of school, as seen from Basement Tape #10. Ryoba follows him to America, as he was on the run from her since she had threatened his life. However, it's currently unknown what happens next, although it may be revealed in the ending.

Ryoba had a hostile relationship with the Journalist even before the trial, as shown in the Journalist's tapes and 1980s Mode. The Journalist strongly dislikes her and holds a grudge against her for her criminal actions, such as murdering Sumire, eliminating other girls by killing, gossiping, and getting them expelled just for having a crush on Jokichi. He was the only person who wasn't fooled by Ryoba's deception. Although the Journalist was able to have her arrested, Ryoba was able to escape a guilty verdict by manipulating the court's emotions.. As a result, her actions caused the general public to turn against the Journalist, including his former apprentice, Sonoko.

In Ryoba's diary cutscene after the trial, Ryoba swore to take revenge against the Journalist for ruining her chance to have a proper meeting with her beloved, but could not do so due to the public now having their eyes on her. Ryoba spared the Journalist's life, but only because killing him would draw too much suspicion towards her. YandereDev did say that Ryoba will most certainly get away with killing the Journalist.

Sonoko Sakanoue

Main article: Sonoko Sakanoue

Sonoko was Ryoba's last rival. Canonically, Ryoba befriended her after she went to an insane asylum to burn pictures of Sonoko that were in a duffle bag. After that, she was able to convince Sonoko to stay away from her Senpai.

When Ryoba was in court, Sonoko testified for her, saying that Ryoba was a good person and would never commit murder.

If Sonoko testified against Ryoba in court, Ryoba wouldn't kill her to arouse suspicion. But she would hate Sonoko. If the latter succeeded in imprisoning Ryoba with her testimony, it would only make Ryoba an enemy of Sonoko.

Canonically, Ryoba was never pushed by Sonoko.

Ichiko Saikou

Main article: Ichiko Saikou

According to YandereDev, from 1985 to 1988, Ichiko was the president of the student council at Akademi. Everyone at her school feared Ichiko. They didn't want to "piss off" Ichiko or be on her bad side, due to the fact that she was the daughter of Saisho Saikou, the founder and builder of the school they were studying in.

Ichiko hated the idea of people fearing her. She wanted to be treated like a normal person, rather than "some sort of hazard that they had to be careful around." She was completely unable to make friends who saw her as an equal, as a result, she felt isolated while being treated like a goddess by the surrounding people. Ryoba met Ichiko in 1988.

Members of the Aishi bloodline are "generally pretty fearless", and they do not care for the social norms as other people do. Ryoba had never feared or been wary of Ichiko like other students at Akademi. Ryoba speaking to her informally and casually was all Ichiko wanted from her peers. This resulted in Ichiko being one of Ryoba's only true friends, often confiding in Ryoba about her deepest secrets and problems.

Ryoba received countless amounts of information from Ichiko, who told her only friend how much she hated her father, hated being the family member of the Saikou family, wanted to run from her responsibilities, had no interest in inheriting Saikou Corp, considered escaping Japan and changing her identity, and hearing voices in her head from someone claiming to be her twin sister.

Before Ichiko graduated, Ryoba was being monitored by Saisho Saikou very closely. He wanted to know if his daughter was being negatively affected by Ryoba, which led to Saikou Corp immediately researching everything about Ryoba and the Aishi family. Ichiko wanted to keep in touch with Ryoba, but due to her father keeping her busy, she could not communicate with Ryoba. Saisho would have stopped monitoring Ryoba after his daughter graduated, but due to a mysterious disappearance that occurred at Akademi, Ryoba was still researched and monitored by Saikou Corp.

Ryoba received a letter from Ichiko at the beginning of 1990, saying that she was leaving Japan. She had one last phone call with Ryoba before vanishing from the public eye. This letter was kept in the basement of the house, where Ayano could access and read it.

YandereDev revealed that while Ichiko believed Ryoba to be her true friend, Ryoba did not feel the same. This is due to Aishi's rarely feeling a sense of friendship towards anyone else. Even after taking Jokichi and unlocking the Senpai Effect full-time, Ryoba remained pragmatic, and her feelings towards Ichiko did not change much.

Others

• Ui Tunesu: Ui witnessed Ryoba taking a knife out of the Cooking Club, and when the police came to investigate Sumire's disappearance, she informed them about what she saw. Even after Ryoba was declared innocent, Ui always remained suspicious of Ryoba.
• Beni Yoshida: When Ryoba shops in the town, she can talk to Beni in the hair salon. Once Beni found out that Ryoba was also a murderer, she suggested they swap tips. Those tips will appear in Ryoba's notebook.
• Sumire Saitozaki: Sumire was Ryoba's first victim. She was killed by Ryoba with a knife in the third-floor girls' bathroom on April 1st, 1989, as hinted at in some of the Mysterious Tapes. The reason why Ryoba and her daughter can detect Sumire's presence (either by Yandere Vision or by a camera) is because of Sumire's hatred towards Ryoba and her bloodline. If Sumire's ghost hypothetically appeared to haunt/kill Ryoba for her actions, the latter would see this as undeniable proof of the supernatural, and see this being as another opponent to eliminate using rituals or specific methods.
• Her sister: Ryoba's sister attended a different school in Tokyo, so she and Ryoba were separated from each other. The reason why Ryoba worked hard to get into Akademi is that she cares about her younger sister and wants to set a good example for her. When she was born, Ryoba saw this as an opportunity to be like their grandmother, to surpass their mom by doing the simple act of caring for a family member.
• Her grandmother: Kataba did most of the work to raise her grandchild due to the neglect Ryoba faced from her mother. As a result, Ryoba viewed her grandmother as a role model, someone whom she respected and aspired to be. She didn't want to burden Kataba with raising two children, so she eased her grandmother's burden by caring for her sister. Although Ryoba does not talk about Kataba much, she still remembers her grandmother fondly. Ryoba's current relationship with her grandmother is dismissive, explaining that Kataba sees her more as an inconvenience in their own home, and there was no point in prioritizing or placing Kataba as a "factor" in her life.
• Her mother: Dozuki never cared for Ryoba and her sister and left their upbringing to her elderly mother, causing Ryoba to develop resentment towards her mother for being so neglectful and selfish. When her sister was born, she didn't want her elderly grandmother to take care of her, so Ryoba took care of her sister. She even enrolled in Akademi to be a perfect example to her sister, and luckily, they didn't become like their mother.
• The Yakuza and his younger brother: After befriending Togo, Ryoba gets access to meet the Yakuza in 1980s mode. Currently, she remembers the Yakuza and his younger brother but did not maintain contact with them.
• Jokichi's Family: Jokichi's parents and younger sister believe that Ryoba is a lovely young woman, and they're happy that their son found love. However, since Ryoba's trial spread across the nation, Jokichi's parents would know her and get somewhat skeptical of her.
• Her boss: According to YandereDev, Ryoba has worked for the same boss for decades, so she feels a sense of attachment to him. She got a job in the early 1990s that she kept, which is around 30-35 years of working there. Because of working at the same job since 1990 and not asking for vacations as much, her boss had no issue with granting her 10 weeks of vacation.
• Her Classmates And "Friends": Ryoba's nickname, given to her by her classmates, would have been "Ryo-chan". Ryoba did not bother to maintain any friendships she made at Akademi.
• Ritsuko Chikanari: Ritsuko's existence reminds Ryoba of her mother, as both women share similar, if not the same, personality traits. Ryoba considers Ritsuko to be distasteful.
• Kugi Aishi: Ryoba learnt about the Aishi Condition through the 6th Aishi, but the latter is missing some knowledge of the very origin of the condition.

Trivia

• Ryoba (2005) was added to YandereDev's "characters" on September 30th, 2016.
• Ryoba's name is derived from "Ryōbo," 寮母, which is a Japanese word for "Matron." Still, YandereDev changed it to "Ryōba" instead so it would sound more feminine. Ryōba, 両刃, on the other hand, means "Double-Edged," and it's a name for a type of Japanese double-edged blade. The word "Ryōba" also has various meanings, including "Hunting Ground" (猟場), "Fishing Ground" (漁場), and "Good Horse" (良馬)
• Ryoba and Kataba are capable of handling and operating a firearm.
• The first Basement Tape may have implied that she raped Jokichi. When asked about this on Twitter, YandereDev said that he would like to address this issue with a tape so it would not be spoiled on Twitter.
  • However, YandereDev later directly confirmed on Reddit and Gmail that Ryoba did not rape Jokichi at all.
• In the event of being stalked, the stalker would suddenly lose Ryoba, then feel a tap on their shoulder, turn around, and see Ryoba standing there.
• The player might get to see her in action in a brief ending cut-scene of 202X Mode, but it would depend on budget and volunteers.
• In the scenario that L from the Death Note Manga was in Yandere Simulator, he would probably be able to conclude that Ryoba is a serial killer by considering the factors surrounding her and the crimes that occur around her. But he wouldn't have firm evidence against her. To arrest her, he would have to create a situation that would entice her to commit a crime.
• Ryoba's favorite pizza topping is what Jokichi likes.
• While Ryoba has regrets about her past, she is content with her life in the modern day and would not sacrifice her daughter for a chance to re-do.
  • One of her regrets is not cleaning up the one blood stain after murdering Sumire, and another was allowing Ui Tunesu to witness her taking the knife.
• Ryoba chronologically had 11 rivals, and she canonically murdered 6 of them.
• In a one-on-one confrontation, Megami Saikou could defeat 1989 Ryoba, since she has been trained to fight off people like Ryoba by her father. However, if Megami was Ryoba's enemy in 1989, Megami can defeat the week 1 Ryoba; however, she won't be able to defeat the week 10 Ryoba because Ryoba's stats are maxed. She has a lot of knowledge about committing crimes in week 10 due to her experiences.
• The trial that revolved around Ryoba as the defendant set legal precedents on how much evidence is needed to convict someone of murder. As a result, it often gets mentioned or referenced in pop culture or legal settings.
• Canonically, Ryoba befriended Haruto Yuto to complete Moeko Rakuyona's task.
• The reason Ryoba did not receive food from the Cooking Club was that she simply told them "no food please" and had her name crossed out on the catering list.
• At week 10, when all her stats are maxed out, her academic skills are on the same level as Reiichi's.
• Ryoba has canonically killed other people than her rivals, namely between 1990-2020. She has never mind-broken anyone, though, most likely due to her mixed opinions about torture.
• Ryoba's job title is unknown, but instead of working the standard Monday through Friday shift, she works as a contractor. Her boss only calls her when there's work for her to do. In the 90s, she often had to travel for business. Still, from the 2000s to the present, she usually travels for work once a month for a week, and spends the rest of her time as a housewife.
• Ryoba's hobby is sewing.
• The Aishi family is highly successful in the textiles industry, producing everything from rugs to garments of the highest quality; the family has passed down the skills of sewing and weaving fabric for generations, reaching Ayano. This is the reason why Ryoba has impressive crafting skills and her husband took her surname, and not vice versa.
• Canonically, Ryoba did work as a maid in the maid cafe in 1980s Mode.