所沢京介
Kyousuke Tokorozawa is a ex-boxing champion. He made Riku interested in boxing.
Riku Azami
芥生リク
Yuki Naeshiro
苗代ユキ
Shinji Baba
馬場進司
Kaede Hyoudou
兵動楓
Kazuma Tsubaki
椿和馬
Yuichi Mihara
三原雄一
