Osoro Shidesu

Osoro Shidesu
Role	Rival (202X Mode) Leader of the Delinquents (202X Mode)
Class	2-2
Club	Delinquent
Persona	Lovestruck
Reputation	-33 (overall) Liked: -100 Respected: -100 Feared: +100
Crush	Taro Yamada
Strength	Invincible (strongest student in the school)
Appears	Week 8
Voice	Alexis Silvera (formerly)

Osoro Shidesu is the eighth upcoming rival and the leader of the delinquents in Yandere Simulator.

Appearance

Osoro has unkempt, shoulder-length blonde hair and brown eyes. She has an 'X' shaped scar on her left cheek. Her bust size is 1.3.

Once she is implemented, she will wear the default uniform with black shorts underneath her skirt, a large, torn jacket hanging off her shoulders and bandages on her muscular arms and legs unless customized by the player.

YandereDev has admitted that he's never thought about what Osoro would wear outside of school. He imagines that she would wear something similar to what the woman on the left in this photo wears and would never take off her "cape".

Although Osoro dresses like the rest of the girls at her school, she would likely wear pants outside of school instead of skirts.

Personality

“

Osoro is the leader of the school's gang of delinquents. Very little is known about her past, or her goals. She has been known to be violent, so most people tend to stay away from her out of fear.
Osoro will be absent from school for a very long time, and will not make her appearance until the eighth week of gameplay. Against all odds, she will develop a bond with Senpai, who normally keeps his distance from people like Osoro.
Senpai and Osoro are polar opposites - so, what kind of experience could possibly cause them to form a friendship? What does Senpai know about her? What does he see inside of her? And what could stop their friendship from blossoming into something deeper?

”

— Description on official website.

Among the Personas that are currently implemented at the game, Osoro will most likely have be Violent, making her unique among the rivals. If she witnesses Ayano Aishi committing murder, she will not run to Taro Yamada, but will attack Ayano instead. She is the most dangerous girl in school besides Ayano.

She will be suspended from Akademi for one week seven times in a row. The reason for that is that Genka Kunahito and Kocho Shuyona were able to reach an agreement: the Faculty and Student Council will tolerate the delinquents' behavior for a period of 10 weeks, and give the counselor a chance to reform them. However, if Genka is unable to reform the delinquents within 10 weeks, she will be dismissed from and the delinquents will be expelled. Genka recognized that it would be difficult to reform the delinquents while their biggest influence — Osoro — was still present at school. The next time that Osoro slipped up, the counselor expelled her for a period of 7 weeks.

Osoro was made fun of by other children for a number of reasons as a young child. Some of these "reasons" included: being covered in bandages, showing up to school with new scars, and being poor. Osoro attempted to befriend other kids, but it never worked. But because intimidating other kids changed this, it made them too afraid to make fun of Osoro. She decided then on to be scary and frightening than try and attempt to make friends.

Osoro dislikes speaking unless it's absolutely necessary and often refuses to respond to people who are speaking directly to her. She is so intimidating that she often doesn't need to speak to make someone stop what they are doing. Her presence alone is enough to defuse most situations, without her even saying a word. If she does respond to someone, she's probably going to be terse and may use profanity. However, if someone tried to have a positive interaction with her, she wouldn't deliberately be rude, but she wouldn't be polite either. Her response would indicate that she doesn't really understand how to express herself or respond meaningfully to people who are trying to interact with her, even when they're being nice.

She doesn't back down from a fight that someone else starts, but she also doesn't go out of her way to start fights, either. If someone would challenge her for a fight, she would not verbally accept the challenge, but would not decline, either. In fact, she wouldn't say anything at all; without changing her posture, she would simply stare her opponent in the eye, silently. If her opponent drew closer, she would tilt her arms back to make her coat fall from her shoulders. If her opponent continued to draw closer, she would angle her body to make it easier for her to react to an attack; not a full-on "fighting stance", but a "ready stance". If, at this point, her opponent threw out an attack, only then would she make any type of aggressive move. Her specialty is deflecting her opponent's first move and ending fights with a single knockout blow, landing a punch on the opponent's chin that makes their head turn so quickly, their brain slams against the interior of their skull at high speed, and they go unconscious immediately. In the event that their opponent doesn't go down from a single punch, Osoro fights very, very dirty, without mercy, going for eyes and other sensitive areas. She prefers not to speak at all, unless it is to return an opponent's taunt with an unexpected witty comeback in a completely flat tone of voice.

Routine

Though it is unknown at the moment, YandereDev has said that her routine will put her in close proximity to Taro or other students.

Topics

The Conversational Topics that Osoro has opinions on are as follows:

Positive	Negative
Cooking Music Martial Arts Cats Money	Drama Violence Reading School Family

Relationships

Taro Yamada

Main article: Taro Yamada

Like most other rivals, Osoro will have a crush on Taro. There will be a reason as to why she can win him over even though she is a delinquent and will most likely have a low Reputation. YandereDev will not spoil anything, but apparently the two will grow some sort of mutual bond.

Family

The only things YandereDev can say about Osoro's mother would be spoilers. He later stated that her mother is not alive, and her family will be an important aspect of her week.

Umeji Kizuguchi

Main article: Umeji Kizuguchi

Umeji is trusted to lead the delinquents while she is absent, as her right-hand man. As he is loyal to her (and even idolizes her), he would never give out any information that could put Osoro at harm or danger.

Rivals

Main article: Rivals

Osoro feels indifferent towards other rivals.

Trivia

• Osoro itself is not a proper name. It is likely derived from the Japanese word Osoroshii (written 恐ろしい) which means frightening or terrifying.
  • Another possibility is that her name is from the Basque word of Osor meaning fear or dread.
• Shidesu is also not a proper surname.
• If Ayano Aishi attacks her, just like Raibaru Fumetsu, Osoro will stop her which leads her to a game over.
• It will be more difficult to soak Osoro with a bucket, as she will have fast reflexes.
• If Osoro saw Ayano taking a panty shot of her, she would run up to Ayano and start fighting her.
• Her coat came from a student who attends high school in Shisuta Town. She took it from him after she beat him up, along with all his other classmates that challenged her.
• After Megami Saikou, she is YandereDev's second favorite rival.
• She remembers the last time she cried, but she hasn't cried for several years.
• She has a pet Cockatiel.
• YandereDev stated that her favorite food is any food that involves protein. Espically if it helps with her muscle growth.
  • She enjoys grilled chicken, although she rarely gets the chance to have it.
• She has trouble finding a protein bar or shake that she enjoys the taste of.
• She doesn't watch videos much.
• Just like Raibaru Fumetsu, if a mindslave attacks her, she will be able to stop them. In order for them to kill her, Ayano must sneak up and attack from behind.
• She would probably win in a one-on-one fight with Megami.
• Osoro would defeat Shiromi 9/10 times, if Shiromi doesn't use any dirty tricks.
• She will not be expelled from Akademi along with other delinquents if they are expelled during her week.
• Osoro does not drink alcohol.
• In an email, YandereDev answered that if Osoro wasn't in Japan, she'd be in South Korea.
• YandereDev says he has a lot of plans for Osoro, but he does not want to spoil them.
• Despite the delinquents disliking the bullies and even praising Ayano Aishi murdering them, Osoro would not tolerate any killing of anybody.
  • If Osoro witnesses Ayano killing the bullies, or anyone in general, she would immediately run to apprehend Ayano.
• Osoro rarely gets to eat good food, so while she does enjoy cooking, she isn't particularly good at it.
• If Osoro fought with Itachi, it would be one of the most "evenly-matched" fights in Akademi.
  • In the end, she would win.
  • Itachi would complain about Osoro fighting dirty instead of fairly, but he would concede anyways
• Out of the other rivals, Osoro is least likely to have social media. So it is not easy to know as to what she would post.
• In a situation where Osoro's life is at risk, and she has to murder people in order to not die, she would be in third place in terms of being a lethal risk, followed by Budo Masuta, Raibaru Fumetsu, Itachi Zametora and Daisaku Aragaki.
• Osoro could've been picked as an "enforcer" as a student council member by Megami Saikou because of her physical strength, but her role as a delinquent would disqualify her.
• If someone slapped Osoro, the latter would punch them back once and completely knock them out.
• Osoro can do a backflip, however, it will not be needed during the gameplay.
• If Osoro wanted to join the Martial Arts Club, Budo Masuta would question her intentions, either using martial arts for the good or for the evil. Ulimately, Budo would only let her join if he feels that her intentions are not malicious.
• Osoro does not have any interest to join a gang.
• Out of all of the 202X rivals, Osoro ranks #10 in intelligence and general competence.

Gallery & Quotes

• Gallery
• Illustrations
• Quotes

Gallery

Profiles

Osoro's 1st portrait. December 22nd, 2020.

Osoro's 2nd portrait. Date unknown.

Osoro's 3rd portrait (bugged). October 31st, 2021.

Osoro's 4th portrait (bugged). November 18th, 2021.

Osoro's 5th portrait (bugged). January 8th, 2022.

Osoro's 6th portrait (bugged). March 30th, 2022.

Osoro's 1st silhouette portrait. March 14th, 2020.

Osoro's 2nd silhouette portrait. March 31st, 2020.

Osoro's 3rd silhouette portrait. May 2nd, 2024.

Osoro's 2nd profile.

Osoro's 1st silhouette profile. March 14th, 2020.

Osoro's 2nd silhouette profile. March 31st, 2020.

Osoro's 3rd silhouette profile. June 1st, 2020.

Miscellaneous

From the video, "Delinquents in Yandere Simulator".

Angry Osoro in "Rival Introduction Video".

A reference image of Osoro by Druelbozo.

Osoro in the Thanks For Playing cutscene at the end of the demo.

Osoro in a Sneak Peek Video.

Osoro in Yandere Simulator's intro.

Illustrations

Osoro Shidesu Blushing.

An old concept art.

An old illustration of Osoro.

Another old illustration of Osoro.

Another old illustration of Osoro.

An illustration of Osoro by kjech.

The silhouette of Osoro.

A preview of Osoro.

An illustration of Osoro by kjech.

An illustration of Osoro as a Pokemon trainer by kjech.

A commission of Osoro riding a motorbike.

A sketch of Osoro nosebleeding over Taro being teased by Budo.

Sketches of the rivals (and Ayano) for Valentines Day.

An illustration of Osoro from the the third anniversary blogpost.

Osoro in the 4th Anniversary blog post.

An illustration of Osoro from the 5th Anniversary blog post.

Osoro's model student sprite.

In videos

Another silhouette of her in "How Sanity Affects Murder in Yandere Simulator".

A teaser of Osoro.

From the video "Yandere Simulator's Biggest Problem".

Osoro in "How Sanity Affects Murder in Yandere Simulator".

Preview of Osoro from "September Progress Report".

Osoro in "Rival Introduction Video".

Osoro's hand in New Gameplay Mode in Yandere Simulator: "Mission Mode" .

A male version of Osoro from the Yandere Simulator Male Rival Introduction Video.

A male version of Osoro (blushing) from the Yandere Simulator Male Rival Introduction Video.

Osoro in Delinquent Update Trailer.

Osoro in Delinquent Update Trailer.

Osoro in Yandere Simulator Delinquent Backstory.

Osoro in Yandere Simulator Delinquent Backstory.

Osoro in Yandere Simulator Delinquent Backstory.

Quotes

“

Girls like you really get on my nerves. Get lost. That boy...he's the only one who...

”

— Osoro in "Yandere Simulator Rival Introduction Video".

“

Who the hell do you think you are? Get out of here before I break your neck! That boy. He's the only person I can be my true self around.

”

— Alternate Osoro line for the "Rival Introduction Video".

“

...Keep it.

”

— Hypothetical dialogue of Osoro reacting to someone giving her a flower.

“

..........

...........

...tan bitches

...go see what those tan bitches are up to. ...you'll find your answer.

Tch.

”

— Osoro's hypothetical dialouge with Budo Masuta.

“

...

...

...I didn't do anything. ...but you're welcome. ...or whatever.

”

— Osoro's hypothetical dialogue to Horuda after helping the latter from bullying.

“

...you wanna give it a try?

...waste of time and energy.

”

— A hypothetical, non physical stand off with Itachi Zametora.

“

...
...
...
...
I wouldn't tell you to leave.
Tch...if you start hanging out with me and the others...I won't tell you to leave. You'll have to explain yourself to them, of course...and if you make them uncomfortable, you'll have to go. But...if you just explain yourself to them...yeah, I think they'd probably be fine with you being there.
...just Osoro.
Hm.

”

— Hypothetical dialogue of Osoro helping Kokoro.

“

...
...
No.
It ain’t cleanin’ time yet.
I’ll clean it. Later. At cleanin’ time.

”

— Hypothetical quote from Osoro after being approached by Aoi Ryugoku regarding a noise complaint.