Kurumi Haraga is Rentaro's 12th "girlfriend" from 100 Girlfriends franchise. She is Rentaro's cousin. Chiyo has an incredible ability to find messes and fix them. Chiyo has incredible strength in her head, being able to knock down several people with her punch.
Chiyo is reliable and tidy which led to her becoming class president. But she dislikes negative things unexpectedly (such as violating the rules, looking untidy, a messy room, rude speaking, porn mags, underage smoking, etc.). As soon as she found out, she immediately fixed it.
When she takes her glasses off, she becomes anxious and begins crying uncontrollably.
