Ume Shiraume

Ume Shiraume is the student council president and a lesbian. She constantly abuses and slaps Sato due to her jealousy of Hana for whom she has feelings, despite also being prone to flirt with other girls like Ayame.

Personality
She usually gets very angry with Satō for his closeness with Hana Oshiroi and feels jealous of him. She tends to act lesbian with other girls like Ayame.