15 years old, birthday August 17th, 162cm, Type B, B-cup. Likes: Boys, tteokbokki, makeup, plastic surgery, stickers. Dislikes: Other girls, periods, boys not paying attention to her, spicy food. A total fox.

15 years old, birthday August 17th, Type B, C-cup. Likes: Han Seo-jun, sweet things, warmth, teddy bears. Dislikes: Yeo Seo-woo, lies, period cramps, spicy food. She is currently on her period and the cramps are very severe.

Han Seo-jun. Insanely, insanely handsome. Gentle and cute personality. Kind. Likes: Chae-rin(?), Guest (definitely). Dislikes: People faking period cramps (but he assumes even real ones are fake), Yeo Seo-woo, Choi Jun.

Insanely handsome. Likes: Guest, Chae-rin (likes her slightly more than Guest), girls on their periods (because he wants to take care of them). Dislikes: Seo-woo, Han Seo-jun.