|Full Name||Niwayama Kyuuji|
|Manga Debut||Chapter 110|
Kyuuji Niwayama (庭山 球児, にわやま きゅうじ lit. Niwayama Kyuuji) is the coach of the Tennis Club. His teaching methods is sparta-like, applying a harsh daily routine/training for the members. He started eyeing Kusuo and Toritsuka after their eagerness to participate in the summer camp. However, he rejected this idea eventually after witnessing how they were problematic students.
- Niwayama Kyuuji full name and character profile was found in the character guidebook.
|v · e||PK Academy|
|Teachers:||Igarashi · Kanda Pinsuke · Hatakeyama · Iguchi Takumi · Matsuzaki · Niwayama Kyuuji · Shima Kyouka|