Niwayama Kyuuji

Niwayama is the coach of the Tennis Club. His teaching methods is sparta-like applying a harsh daily routine/training for the members. He was eyeing Kusuo and Toritsuka after their eagerness to participate for the summer camp however, he rejected this idea eventually after witnessing how they were problematic students.

Trivia

 * full name and character profile was found in the character guidebook.