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This article is for Sakyu Basu. Were you looking for her younger sister or mother?

Sakyu Basu is a female student who attends Akademi in 202X.

Appearance[]

Sakyu is a demon whose appearance is that of a humanoid female, a hybrid of a succubus and another demon of unknown species. Despite being over 200 years old, she closely resembles a young, attractive human woman due to physical aging signs disappearing when a demon reaches an age of maturity.[3] She uses the "Elegant" animations and has a bust size of 1.5.

Sakyu has voluminous, wavy, waist-length, lavender purple hair. While the left side of her hair is tucked behind her ear, the right side is visible, with her strands falling over her ear and the side of her head. She has similar colored eyebrows, light orange eyes with a hint of gold, vertically slit pupils, burnt umber eyeshadow, and lipstick. Her real eye color could be considered a spoiler.[4] When questioned about her eyes, she lies and says they're contact lenses.[5]

She wears the default uniform with a spiky golden ring with three pink jewels, the center jewel being coffin-shaped with a little bat stamped on the center, and dark gray stockings with a spider web pattern unless customized by the player. The stockings are really just her demonic physical appearance sliding down onto her legs, so that her legs are covered. She can then pass them off as stockings to other people.[6]

BasuSistersSideBySide

As a demonic entity, she is half-nude with curved black detailing covering her breasts, pelvis, and partial neck, chest, and hips. The dull grayish purple detailing can be seen in huge blocks around her entire torso. Sakyu has black, thick, sharp sleeve cuffs, which also show her demonic skin. She dons a lava red heart-shaped jewel, which is attached to her choker. Her "stockings" are also attached to her body, and she has black curved horns which make a "c" shape around her temples. She uses a special idle animation, which is a variation of the Elegant animation.

Previous[]

Before the October 31st, 2024, build, Sakyu had upper back-length purple hair with bangs parted to the right. She also had yellow eyes with catlike contact lenses, lavender and red eyeshadow, and hot pink lipstick. She had a mole on the left side of her chin. Sakyu's mole was intentionally removed in order not to replicate her asset model that was used as her base.[7]

That model (along with old Inkyu's model) can be bought in the Unity 3D Asset Store. The pack's name is Succubus Twins Character Pack. Her model's name is Arum. Her model also used to be shared by Himedere-chan and Dracula-chan.

Personality[]

Sakyu Basu and her younger half-sister, Inkyu Basu, are a pair of young women who recently enrolled in Akademi. Their scores on the entrance exam were exceptionally high, as if they possessed knowledge far beyond their apparent ages. However, after classes began, their academic performance dropped to an average level, as if they were attempting to avoid drawing attention to themselves.

Sakyu's calm and mature nature contrasts greatly against the energetic and childlike behavior of her younger sister. Although both young women are friendly enough when approached by others, they usually keep to themselves, preferring each other's company above anything else. Despite their friendly demeanor, there are many students at Akademi who feel inexplicably intimidated by them.

When asked why they chose to attend Akademi, they always provide the same answer: "We're looking for something." This woefully short reply is far too vague to adequately satisfy the curiosity of anyone who wants to learn more about them. However, no matter how much they are begged to elaborate, they refuse to say anything more about their intentions at Akademi.

It may be worth noting that, on one occasion, when asked why she chose to attend Akademi, Inkyu misspoke. Instead of giving the usual answer - "We're looking for something" - she instead said something else:

"We're looking for someone."

— Description on official website.

There is no shortage of books in the world that seek to enthrall the reader with fantastical stories of supernatural beings. These books are widely regarded as fairy tales for the entertainment of small children. But, on rare occasion, one might discover a book which emphatically insists that the beings from these stories are not inventions of human imagination, but truly did exist.

This type of book - often at the cost of the author's credibility and reputation - makes the outlandish claim that mankind once shared the world with a wide variety of supernatural creatures who existed in significant numbers. However, these creatures could only subsist on human flesh, making co-existence impossible. Thus, the creatures were hunted down, nearly to complete extinction.

Because these supernatural creatures disintegrated upon death, no credible physical evidence of their existence remains, aside from a small number of contemporary paintings that allegedly depict these creatures, and written accounts of supposed encounters with these creatures - all of which have long been debunked and discredited by academic communities.

And yet, despite the dubious nature of these claims, there are those who choose to believe them. "Occult Researchers" - existing in small numbers, shunned by the rest of society - dedicate their lives to seeking empirical evidence of demons, ghosts, succubi, vampires, zombies, and any other type of supernatural being that is regarded as fictional by the rest of society.

According to the legends that these researchers believe, these supernatural beings posed such a threat to mankind that grand academies were built to teach young men and women the skills they would need to slay monsters - including, by some accounts, actual magic spells. As usual, there is no physical evidence to support the notion that these "monster slayer academies" truly existed.

Supposedly, Japan was once terrorized by paranormal beasts known as "Oni" until the 1800s, when a pair of elite monster slayers from the west arrived in Japan through supernatural means, and became almost single-handedly responsible for wiping out the entire monster population. This claim is not taken seriously by the Occult Research community, who have found countless holes in the story.

Regardless of what is true or untrue, there is a portion of the population - however small - who remains convinced that supernatural creatures not only exist, but sometimes walk among us, masquerading as humans. Succubi and vampires - the most humanoid of all supernatural beings - have the highest chance of escaping notice...if one chooses to believe in such things in the first place.

It is said that the only way to identify a non-human is to examine their pupils for unusual shapes...but, with the rising popularity of Saikou-brand cosmetic contact lenses, it is increasingly common for people to display unusually shaped pupils, thus making it unconventional to attempt to "identify a supernatural being" by simply pointing out the shape of a person's pupils.

Sakyu Basu and her younger half-sister, Inkyu Basu, are a pair of young women who recently enrolled in Akademi. Their scores on the entrance exam were exceptionally high, as if they possessed knowledge far beyond their apparent ages. However, after classes began, their academic performance dropped to an average level, as if they were attempting to avoid drawing attention to themselves.

Sakyu's calm and mature nature contrasts greatly against the energetic and childlike behavior of her younger sister. Although both young women are friendly enough when approached by others, they usually keep to themselves, preferring each other's company above anything else. Despite their friendly demeanor, there are many students at Akademi who feel inexplicably intimidated by them.

When asked why they chose to attend Akademi, they always provide the same answer: "We're looking for something." This woefully short reply is far too vague to adequately satisfy the curiosity of anyone who wants to learn more about them. However, no matter how much they are begged to elaborate, they refuse to say anything more about their intentions at Akademi.

It may be worth noting that, on one occasion, when asked why she chose to attend Akademi, Inkyu misspoke. Instead of giving the usual answer - "We're looking for something" - she instead said something else:

"We're looking for someone."

— Old description on Official Website


A calm and mature young woman. Rarely gives a straight answer whenever she is asked personal questions. Although she is considered to be one of the most beautiful girls in school, boys rarely approach her, considering her to be intimidating and slightly unnerving.

— Description from Info-chan.


Wears contact lenses.
Enjoys spending time with her younger sister.
Rumoured to be a succubus disguised as a high school student... but only a fool would believe something like that.

— Old description from Info-chan.


Sakyu striking a cute pose.

Sakyu striking a cute pose.

Among the Personas that are currently implemented in the game, Sakyu is a Social Butterfly. She will happily pose for a picture if Ayano Aishi aims her Phone at her. If she sees a corpse or witnesses a murder, she will run to the nearest crowded area and call the Police. If Ayano approaches, she will scream for her to go away, and if Ayano commits another murder in her eyesight, she will curl into a ball. If she sees Inkyu Basu's corpse, she'll run up to her and call the police, sobbing near her lifeless sister. She cannot participate in physical fights against murderers unless they kill her sister. If Inkyu is killed without Sakyu witnessing it, she will take on the Fragile persona.

She is knowledgeable, serious, and a "tsukkomi."[8] Her supernatural power strength is "considerable".[9] Despite that, Sakyu has had terrible travel experiences while in disguise as a human, including near-death with a top-level monster hunter, and being unable to use her abilities to get away from a situation, since it could attract attention to her.[10]

After living for over two centuries, she is easily bored. Sakyu wants experiences that could thrill her, but even the Aishi hypnosis torture technique does not work on Sakyu, even though she fools the torturer into thinking it's working on her. However, Sakyu would not kill her sister to decrease her boredom, nor come in physical contact with the weapon designed to murder demons.[11]

Sakyu eats dreams to continue living[12], more specifically, "the dreams men have when they are sleeping".[3] She doesn't need to kill to live, unlike her younger sister.[12] However, she would slaughter somebody if the latter figured out that she or her sister were monsters, having no other choice.[13] If killed herself, she would pose as corpses until she would never be seen again, before transforming into smoke or a bat and regrouping with her sister, continuing their activities in non-human forms.[14]

Sakyu doesn't get body odor like other humans do, nor does she have a pleasant-smelling odor to "lure" in human prey. Sakyu only showers if the blood of her victims splashes onto her.[15]

Routine[]

The sisters looking for "something

The sisters looking for "something."

At 7:00 AM, Sakyu enters the school grounds, walks to her locker, and changes from her outdoor shoes to her indoor shoes. Then, she walks to the fountain located at the southwest side of the school and talks with her half-sister, Inkyu Basu. Oka Ruto used to stalk both of them the entire time. After her conversation, she walks around the exterior of the school with Inkyu, searching for something. They search places such as the fountains, Zen Gardens, and the Confession Tree. At 8:00 AM, she walks into Classroom 2-2, sits at her desk, and plays on her phone. She starts her morning classes at 8:30 AM.

She leaves to eat her lunch on the Rooftop with her sister at 1:00 PM. She walks back to class again at 1:22 PM, sits at her desk, and plays on her phone. Her afternoon classes start at 1:30 PM.

At 3:30 PM, she participates in cleaning time, which ends at 4:00 PM. She will continue searching the school with Inkyu until the end of the day.

Every day, Inkyu will ask her a question, and she will respond with an answer. They will also comment on deaths, disappearances, atmosphere, school rules, and some lore. This feature has been added as of the May 1st, 2020 build.[8] If Inkyu were ever killed, she would mourn her half-sister's death instead of gossiping on the rooftop. Among these daily discussions, they will drop some hints about the fact that they are indeed supernatural beings. An example is referring to their peers as 'the humans'.

Task[]

Main article: Tasks
Description of the favor from Sakyu Basu
This favor requires… Description
Book (Task Silhouette)
This student needs to write a report, but can't find the necessary information online. Help them get the info they need.
The player can visit the left side of the first bookshelf near the indoor window in the library and grab the book by clicking "E". As this object does not take up space in the player's inventory, it can be checked by opening the phone menu and checking through the inventory app to see the item "Japanese History Book".

Topics[]

The topics Sakyu is Negative/Positive/Neutral towards are as follows:

SakyuBasuConversationalTopics
Positive Negative
  • Occult
  • Cosplay
  • Violence
  • Socializing
  • Family
  • Science
  • Video Games
  • Anime
  • Gossip
  • Solitude

Miscellaneous[]

  • Video Games: Sakyu has played video games loosely based on the supernatural, and found these games cringey due to how inaccurate they are to actual reality. She also feels embarrassed when she hears a distorted story of the supernatural (such as vampires being weak to garlic).[16]
  • Science: Sakyu dislikes science because she hates how humanity's attempts to "collar" the world by attaching a rational explanation to everything, especially when the supernatural (things which cannot be explained by science) exists.[17]
  • Club: Neither of the Basu sisters will probably join any clubs.[18]

Relationships[]

Inkyu Basu[]

Main article: Inkyu Basu

Inkyu is Sakyu's younger half-sister. They are one year apart in age.[4] Sakyu and Inkyu have the same mother, but different fathers. However, they don't see this as a valid reason to feel any less of a connection.[19] They are close to the point that Sakyu lets Inkyu, who needs blood to stay alive, feed off her.[20] Even though the sisters are equal in power, Sakyu is 1% more powerful than her younger sister.[21]

Sakyu mourning her sister.

Sakyu mourning her sister.

Inkyu often asks Sakyu questions regarding the lore of Akademi and about any recent news. As they are very close, Sakyu will react negatively when Ayano gossips about Inkyu, if she kills Inkyu in front of Sakyu, she will attack Ayano with much more force than she's usually capable of. If her half-sister disappears or is murdered, Sakyu will mourn her.

Sakyu has never refused to answer any of Inkyu's questions because of how dumb they are. But if Inkyu asked something really dumb, she would make a straight face.[4]

Over the last two hundred years, she and her sister have been traveling across the Earth looking for their mother, which could be a leading factor in why they are so close.[22] Even outside of school, Sakyu and Inkyu are nearly inseparable. They spend more than 90 % of their time with one another.[23] If they have to be apart from each other for more than a couple of hours for an "act", they both become severely depressed.[24][22] When either one of the sisters dies, the deceased sister takes on another form (such as being a bat) and visits the living sister at night.[22]

In the Death Demon's ritual, it is revealed that both Sakyu and Inkyu have killed countless people throughout their entire lives to prolong their existence. However, YandereDev may change Sakyu's number, as while she did kill people, she hasn't killed as many as her younger sister. This is because of the existence of monster hunters, who know that monsters and demons exist in the real world. They go to places where there are mysterious disappearances, which is a sign of a monster present in that area killing humans for nourishment or for entertainment. This is why there are fewer than 100 monsters left alive on Earth as of 202X.[25]

The ring she wears was gifted to her by her mother over 220 years ago.[26] Previously, she would take it off on lunchtime before eating, giving Ayano an opportunity to steal it; if she'd walk under the cherry tree, a mysterious voice could be heard saying "That ring…" This voice belongs to Sakyu and Inkyu's mother.[26] Sakyu herself, however, cannot trigger the two words from her mother, since Ayano has some "secret sauce" that the Basu sisters don't have.[26]

Father[]

Main article: Minor Characters

Sakyu's father is an incubus. After Sakyu's mother disappeared in 1797, when she was 10 years old, she looked to her father for guidance and protection, and they had a good relationship.[27] However, she only had the chance to spend about 3 years with her father before he was killed by monster hunters sometime in 1800. This was a big turning point in Sakyu's life since it forced her to become independent (then, she was only 12/13 years old), and it was also the moment she realized that humans are dangerous, so she has to be cautious to avoid being killed too. This is where she adopted her "don't have conflicts with humans if it can be avoided" philosophy.[28] At the moment, Sakyu thinks of humans the same way humans think of cattle.[29]

Others[]

  • Oka Ruto: Sakyu and her half-sister were stalked daily by Oka in a futile search for evidence that they are supernatural beings: Sakyu being a succubus and Inkyu being a vampire. Sakyu would likely kill Oka with her sister if Oka figured out too much about the sisters.[30]
  • Bullies: After 200+ years of living among humans, she knows how to diffuse bullying. If the bullies ever bullied her or her sister, they would get genuinely sick of a human disrespecting them and they would kill them in secret, and the mystery of their death would never be solved.[31]

Trivia[]

  • She was implemented as of the November 15, 2015 Build.
  • Sakyu was added to the official website on April 21st, 2024.
  • When asked in 2015 what Sakyu would sound like, YandereDev responded that her voice would be "serious and mature".[32]
    • As of the May 5th, 2016 Build, she now has a voiced, in-game dialogue when her ring goes missing. This no longer plays during regular gameplay, as the player can no longer steal her ring.
    • As of the May 1st, 2020 Build, she has fully voiced conversations with her sister.
  • Her name is a play on the Japanese Katakana transcription of the word "succubus", Sakyubasu (サキュバス).
    • Sakyu's in-game name is not her real name, and she has a true name from the 1700s, although she rarely uses it.[33]
  • She was born in 1787, as mentioned in one of her dialogues. This makes her 239 years old in 202X Mode.
  • In the future, if her half-sister dies, she might switch to the Sleuth persona.[34]
  • On Akademi's Kaobook page, she asks how old the school's sakura trees are. This was previously asked by Taro Yamada, but was later changed to Sakyu.
  • Before the May 1st, 2020 Build, she and her half-sister walked to the rooftop and spent their day talking there.
  • If the player presses K while in the debug menu, Sakyu will spawn as a mindslave.
  • In the April 3rd, 2022 Build, her hair model was updated, but her portrait wasn't until the April 5th, 2022 Build.
  • Sakyu, along with Megami Saikou, Akane Toriyasu, Kizana Sunobu, and Musume Ronshaku are considered the most attractive girls at Akademi.[35]

References[]

pr-br:Sakyu Basu