3rd Year Student
Birthdate: June 3rd
Relatives: Mother; Father
Play Style: Data Tennis, Serve and Volley
Dominant Hand: Right
Special Moves: Data Tennis, Quick serve
Height: 184cm or about 6"1'
Blood Type: AB
Favorite Shoes: Puma (SEQUENCE PTO636 0067)
Favorite Racket: Prince (GRAPHITE CHALLENGE)
Favorite Subject: Physics
Favorite Color: Black
Favorite Food: Durian according to Momoshiro, Italian soup noodles according to Eiji
Hobby: Gathering data, making juices, making his glasses reflect light
Preferred Type: Someone calm. Someone that is older.
Father's Occupation: Office worker
Seiyuu: Tsuda Kenjirou
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".