Rena Kariu

On the first day of school, Rena notices Arata Kaizaki panicking after realizing he had forgotten his pencil box. She soon hands him a spare pencil, annoyed that someone his age would easily forget something so simple. After the tests, Kaizaki thanks Rena for helping him as the two begin to talk. It is soon revealed that Rena has a slight cold, in which Kazuomi Ōga recommends that she should have stayed home. However, Rena states she is perfectly fine and wants to pass the exams in order to achieve the spot on the student council representative and receive the class pin. In middle school, Rena watched Honoka Tamarai play volleyball and soon accused her of holding back. After several taunts, Tamarai reluctantly smacked the volleyball straight for Rena; knocking her to the ground. Anime: Relife