SUSUMU NAKAMURA

Chinatsu is an honor student with many friends, a timid girl who's usually trying to get along with everyone. When she starts having her period, something else seems to change within her, she realizes her feelings, which she had been pretending not to notice, the "monster" inside her begins to rampage and reveal its true nature. She gives in to the urge to hurt her surrounding.

Awaken the "malice" sleeping inside you.Chinatsu is a middle school girl who's an honor student and highly trusted by her teacher. She gets along with her friends, and she spends her days happily without hating anyone. However, on her period, Chinatsu realized it. That she hated her homeroom advisor, and she's extremely irritated by her surroundings. She had put a lid on her own feelings and pretended not to notice, but when she became aware of it, the "monster" inside of her begins to rampage and reveal her true nature.(Source: Comic-Days)