Hikari, who is popular in class, is entrusted with a love letter by her best friend, Risa. Her opponent is Hikari's ex-boyfriend Yamada. He was a handsome but clumsy man and hated Hikari. One day. Yamada rapes him while he is sleeping on the bed in the infirmary with a headache. After the fact, Risa, who came to worry about it, witnessed it and was furious, joining hands with Yamada and giving Hikari more hell.
