Kitsu Chiri is student No. 17 of class 2-F with OCD tendencies. Her name is derived from kitchiri, meaning "precisely", which describes her perfectly. Her appearance is extremely neat, and her hair is combed perfectly straight and parted right down the middle. She also gets annoyed whenever something is not done precisely; because of this other students call her the class representative even though she doesn't have that position.
There are also a number of gags based on her name:
- Whenever Chiri goes on a murderous rampage, her preferred weapon is a shovel. The kanji for Chiri can be combined to form the first character of umeru, which means "to bury".
- Chiri can also be used to describe something as curly or fuzzy. Thus Chiri's hair is actually curly rather than straight.
- In one episode, an all-seeing third eye appears on her forehead. The kanji for Chiri is identical to the first two kanji of senrigan, which means "clairvoyance".