Ryuzu Mishio

Ryuzu Mishio  is a minor character in Mai Ball. He  is the coach of  Kijiyama North High School's  boys' football team'''. ''' He is very confident about the upcoming tournament due to the skill of Kunimitsu Hasuga, his star player. Reika Hakurai had tried to persuade him to allow her to become the team's new coach, however he rejects her proposal. He has short, dark hair and often wears sunglasses.

Main Article: Kijikita vs. Kijinan I

His actions begin to affect the girls' team, as he wants Kunimitsu to be solely focused on his own playing time, rather than being fixed on his coaching responsibilities for the girls' team. This results in the arrangement of a friendly between Kijikita and Kijiyama South High School Girls' FC, and the condition that should Kijikita fail to win, Kunimitsu must resign as coach. Although the game ends 5-5, Mishio and  the Principal  are persuaded to let Kunimitsu stay on as coach.

With regards to his own coaching, his preferred formation is 4-1-3-2 and likes his team to build up play with many short passes. He sees football as a group of individuals occasionally working together, rather than as a total team game. This outlook has led to him loving the South American style of football.