Kokubu Tsukie

Class: 1-C
Favorite food: Japanese sweets (especially youkan and dorayaki)
Hobbies: Judo, tracking down and stalking the protagonist (very skilled at this).
Troubles: She gets more pleasure from anal masturbation. Tsukie also wishes to be as strong as the protagonist.

Yuuya's childhood friend who has admired him ever since he saved her from getting bit by a dog. Tsukie is 120% devoted to her senpai and wants to protect him at all costs and such, will instantly rush to his side whenever he needs help, no matter where or what she's doing; thanks to her abnormally good hearing it makes her "job" easier. Tsukie also has a habit of saying "I'm moved! I'm very moved!" even for the smallest acts of kindness.

She is best friends with both Urara and Yuki, and Yuuya calls them the "Setsugekka Trio".