Kimichika Haijima

A first-year student at Seiin High School. He serves as a setter for the boys' volleyball club, and is referred to as the "Genius Setter" due to his remarkable skills. Kimichika often comes off as cold and emotionally distant, but has shown a softer side around people he cares about, such as Yuni Kuroba. He shows a great love for volleyball, and is incredibly driven, focused and determined to bring any team he plays on to victory. However, the brutal honesty he uses when critiquing his teammates and his short temper that flares whenever he is frustrated has caused tension with other players throughout the years. Despite this tension, and the incidents that were caused because of it, Kimichika has stated that he doesn't regret the things he says.

Until kindergarten, Kimichika lived with his parents in Suzumu City, Fukui Prefecture, which was next to the town of Monshiro. Because his mother was in and out of the hospital due to her illness, he was often left at his maternal grandparents' house in Monshiro. His grandfather used to bring him to Yuni Kuroba's grandfather's house to play shogi, and the two boys became friends from there. After his mother's death, his father took him to live in Tokyo. In middle school, he attended the volleyball powerhouse school, Meisei Academy.