Rena Kariu

Appearance
She has red-brown hair.

History
In middle school she watched Tamarai play volleyball.

Story
She lends Kaizaki a pencil on his first day of school. She loses to Hishiro for best scoring girl on the exams for her class.

Relationships
Kaizaki Arata

Honoka Tamarai - Volleyball rival and friend.

Hishiro Chizuru - Academics rival and friend.