Kazuki Kawai (河合 和己 Kawai Kazuki) is the captain and catcher of Tosei High School's baseball team.
Background
He is a good leader and has a great throwing arm. He also seems a little smitten by Nishiura's coach, Momoe.
Appearance
Personality
Relationships
He knows Rio well, as well as his older brother Roka who is his rival.