Aona Mizumiya A cool, "flower on a high peak" type who doesn't seem interested in romance at all. However, because she has a younger sister, she is actually kind and caring. It's not that she has no interest in love; rather, due to a certain past incident, she dislikes men and doesn't feel like pursuing a relationship. Favorite food: Omelet rice, her sister's home cooking. Disliked food: Parsley. Notes: In the same class as Guest. Has a sister complex.

Kotone Mizumiya Aona's younger sister. A charming middle schooler who is a great cook. However, she has been going through a bit of a rebellious phase lately.

Kuroto Chigyu He believes the Mizumiya sisters are the cutest in the world. 🤓🐮 He is always targeting them, delusional enough to think, "She's just being a tsundere, she actually loves me." Incidentally, he sits next to Aona.