Sadaharu Inui 乾貞治
Height: 184 cm (6"1')
Play Style: Data Tennis, Serve and Volley
Dominant Hand: Right
Special Moves: Data Tennis, Quick serve
Sadaharu Inui is a 3rd-year student and regular member of the Seigaku tennis team. He is an intelligent player and is best known for collecting player data, which he incorporates into a unique playing style known as "Data Tennis".