Kuu Dere

Kuu Dere (real name: Kumi Demura) is the protagonist of Kuudere Simulator, Kuudere Simulator 2, and Kuudere Simulator 3, as well as one of the female students who currently attend Akademi. She is the fourth student to be introduced as an Easter Egg.

She appears in the Kuudere Simulator spin-off games and the "I Want My Senpai Back" video.^[2] Her name was stated as Kuudere-chan in the description.

In the Kuudere Simulator games, she sits on a wooden chair in the middle of an empty room and does not move. The player can scroll the mouse around to get a better view of her.

As of the November 15th, 2015 Build, Kuudere-chan was added to Yandere Simulator as a student with the name Kuu Dere whose real name is now Kumi Demura as of the July 1st, 2020 build.

Appearance[]

Kuu wears the default school uniform unless customized by the player and knee-high white socks.

She has short, azure blue hair and red eyes. She has the same skin tone as Ayano. Her bust size is 1.

As of the March 31st, 2018 Build, the edges of her hair were more defined with dark blue, but as of the April 26th, 2018 Build, that was no longer the case, and her hair was colored dark aqua. Her hair is derived from Honoka Futaba, a character that can be bought in the Unity3D Asset Store.^[3]

In the Kuudere Simulator, her hair is more oval-shaped and is longer.

Personality[]

“	The school librarian. Strongly prefers solitude. Very rarely expresses emotions.	”
	— Description from Info-chan.

She is a kuudere. A kuudere is a common personality trope in anime that displays cold-hearted and inexpressive behavior, as they have difficulty recognizing their feelings (Kuu). They only occasionally show their hidden caring and nice side (Dere).

Among the personas that are currently implemented in the game, Kuu is a Loner. If she sees a corpse or witnesses a murder, she will run home and call the police. She cannot participate in physical fights against murderers. Due to her having the Loner persona, she will hide her face if Ayano aims her phone at her.

According to her Student Profile, Kuu has rarely ever been seen expressing emotions and prefers solitude. She has volunteered to be the school librarian and can often be found reading by herself.

It's possible that, in the future, she will have a unique reaction to murder. This, however, is programming a special case that applies only to her and Robot-chanand will be difficult from the programming side.^[4] This persona may be called "Apathetic".^[5] This idea has since been scrapped.

According to Yandere Dev, Kuu Dere is only pretending to be emotionless because she thinks that acting cold and distant makes her seem cool.^[6]

Routine[]

KUUREAD — Kuu reading a book at the table on the left side of the library. May 18th, 2018.

At 7:00 AM, Kuu enters the school grounds, walks to her locker , and changes from her outdoor shoes to her indoor shoes. As of the July 18th, 2017 Build, Kuu will walk to the library after changing her shoes. She will then sit at the table on the left side and read a book. At 8:00 AM, she walks into Classroom 1-1, sits at her desk, and plays around on her phone before her classes start. She starts her morning classes at 8:30 AM.

She then leaves to go eat lunch on the rooftop at 1:00 PM. She then walks to class again at 1:22 PM, sits at her desk, and plays around on her phone again until her next classes start. Her next classes start at 1:30 PM.

At 3:30 PM, she lastly participates in cleaning time which ends at 4:00 PM. Afterward, she heads to her locker changes from her indoor shoes to her outdoor shoes, and walks home after that.

Task[]

Main Article: Tasks

Kuu's task is to find a missing book. The book is inside the structure in the east Zen Garden on a shelf. Once the player collects and brings it back to her, Kuu will be very happy and will become Ayano's friend.

Topics[]

The topics towards Kuu are (Negative/Positive/Neutral) as follows:

Positive	Negative

Video Games Anime Violence Reading Solitude	Drama Music Martial Arts Memes Socializing

Trivia[]

There was once a bug in the January 15th, 2016 Build where she had Mai's profile. This was later fixed in the February 1st, 2016 Build.
YandereDev likes the idea of her repeating her quotes from Kuudere Simulator; however, this would require a lot of "special case" code.^[7]
She was implemented into the Yandere Simulator in the November 15th, 2015 Build.
Pressing E while playing the Kuudere Simulator will give her an eyepatch. Pressing T will turn her into Tsundere-chan. Pressing H in Kuudere Simulator 2 will turn her into Himedere-chan.
All of her dialogue in Kuudere Simulator, Kuudere Simulator 2, and Kuudere Simulator 3 appears as blue text.
In older builds, her Student Profile used to say that she had not been witnessed exhibiting emotions. However, she would show fear when she witnessed murder.
In her cameo in "I Want My Senpai Back", she has brown eyes instead of red.
Her appearance is a reference to Rei Ayanami from Neon Genesis Evangelion.^[8]
She makes a small cameo in the gaming club by appearing on the dating simulator game screen.
The reason why she was moved to another spot on the rooftop is because, during lunchtime, the Basu sisters both eat their lunch.
As of the July 18th, 2017 Build, Kuu is the school librarian.
If YandereDev decides to have student nicknames, then her real name would not be Kuu Dere and this would instead be a nickname given to her, due to her emotionless and apathetic nature.^[9] He suggested "Kumiko Deremoto" as a hypothetical name for her.^[10]
- As of a later update, Kuu Dere is now her nickname and her real name is Kumi Demura.
The ku part of her real name, Kumi, can be written as "long time" (久), "coming" (来), "nine" (九), or "crimson" (紅), while the "mi" part can be written as "beauty" (美), "fruit" (実), "not yet" (未), or "sea" (海).
- Her surname, Demura, means "to come out" (de, 出) and "village" (mura, 村).
Kuu pretends to be emotionless to appear cool and mysterious when other people think of her.

Quotes[]

“	I don't even need a senpai.	”
	— Kuu in Kuudere Simulator.

“	Who wants a senpai anyway?	”
	— Kuu in Kuudere Simulator.

“	I don't care who senpai is dating.	”
	— Kuu in Kuudere Simulator.

“	Senpai can do whatever he wants.	”
	— Kuu in Kuudere Simulator.

“	A senpai would only make my life more complicated.	”
	— Kuu in Kuudere Simulator.

“	I don't really care.	”
	— Kuu in Kuudere Simulator 2.

“	Blink.	”
	— Kuu in Kuudere Simulator 2.

“	It's ok, I guess.	”
	— Kuu in Kuudere Simulator 2.

“	It doesn't make any difference.	”
	— Kuu in Kuudere Simulator 2.

“	I don't see the point.	”
	— Kuu in Kuudere Simulator 2.

“	Senpai is safe now. Or something. I guess.	”
	— Kuu in Kuudere Simulator 3.

“	She deserved it.	”
	— Kuu in Kuudere Simulator 3.

“	Good riddance.	”
	— Kuu in Kuudere Simulator 3.

“	That was loud.	”
	— Kuu in Kuudere Simulator 3.

“	What a mess.	”
	— Kuu in Kuudere Simulator 3.

“	No, I haven't seen any Senpais around here.	”
	— Kuu in "I Want My Senpai Back".

“	The Library is such a soothing place to sit and relax and enjoy a good book.	”
	— Kuu commenting on the school's website.

“	Someone borrowed a book from the school library and never returned it. When I asked her to return the book, she confessed that she had lost it somewhere, and had been desperately trying to locate it. It was a rare, out-of-print book, and it would be a terrible shame if it was lost to us forever. I would be eternally grateful if someone was able to locate the book and return it to the library. The book was solid black, with a fancy silver design on the cover. She said that the last time she remembered holding it, she was in one of the Zen gardens at school. Not sure which one, though...	”
	— Kuu asking Ayano to return the lost book.

“	How unfortunate.	”
	— Refusing Kuu's task.

“	If you find the book, please bring it back to me.	”
	— Accepting Kuu's task.

“	Incredible. You actually found it. How exhilarating. I'm so happy. I can't find the words to express how grateful I am. I will never forget this moment for as long as I live. I am forever in your debt.	”
	— Completing Kuu's task.