Machio Naruzo

Machio Naruzo (街雄 鳴造, Machio Naruzō; "Naruzo Machio") is a personal trainer at Silverman's Gym who regularly coaches the main characters from Koyo Girl's Academy.

Relationships
Hibiki Sakura: One of the students from Koyo Girl's Academy who Machio coaches. Hibiki has a crush on him but oblivious to her infatuation towards him.

Akemi Soryuin: One of the students from Koyo Girl's Academy who Machio coaches.

Satomi Tachibana: A history teacher from Koyo Girl's Academy who Machio coaches. Similar to Hibiki, she has a crush on him.