Tetsuhiko Kai (甲斐哲彦) is a supporting character in Osamake: Romcom Where The Childhood Friend Won't Lose, voiced in Japanese by Nobunaga Shimazaki. The series' music includes "Osamake: Romcom Where The Childhood Friend Won't Lose - Opening | Chance! & Revenge!", "Osamake: Romcom Where The Childhood Friend Won't Lose - Ending | Senryakuteki de Yoso Funo na...".
