The following character is a canon character.
Please refrain from adding fanon infomation (Eg. Fan-Made Personality, Fan-Made backstory, Fanon Relationships, ETC).


Kuu Dere
Kuu Dere January 4 2019
Student Info
Career Student
Reputation Unknown
Club No Club
Age Around 18
Persona Loner
Crush None
Additional Info The school librarian.

Strongly prefers solitude.

Very rarely expresses emotions.

Kuu Dere is a student created for a joke game named Kuudere Simulator. In the November 15th, 2015 Build, she was added to Yandere Simulator.

Kuu Dere January 4 2019


Kuu has short, light blue hair. Her eyes are red. She wears the default uniform unless customized. Her bust size is 1, and her eye type is serious.


As her name suggests, Kuu is a kuudere. She's calm and polite, although she doesn't have any interest in having a Senpai.

In Yandere Simulator, Kuu is a Loner. She will hide her face if a camera is pointed at her. If she witnesses murder, she will run home and call the police.

Kisekae Export



  • Kuu is based off of Rei Ayanami from Neon Genesis Evangelion.
  • She was implemented in the November 15th 2015 Build.
  • Pressing E while playing 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.


Pictures of her in Kuudere Simulator.

Pictures of her in skits made by YandereDev.

Official and unofficial portraits of her.

Pictures of Kuu Dere in Kisekae.

Pictures that were either hand-drawn or digitally drawn.