Kirisawa had achieved a brilliant career in high school boxing, winning four championships, but he had suffered from injuries, the death of his wife, and other bad luck, so he could no longer imagine a bright future. Concerned about his situation, his best friend Kai and his former teacher Ashiya persuade Kirisawa to become a "temporary coach" for the boxing team at his alma mater. At first, he is reluctant to take on the job, but when he sees the high school students, covered in sweat and hitting the sandbag, "wanting to be strong" and "wanting to win," his own passion gradually comes back to him.

Takuya KimuraShogo Kirisawa

Hikari MitsushimaAoi Orihara

安田顕Seiichiro Kai

内田有紀Makoto Oba

Katsuhisa NamaseHajime Nekobayashi

Nijirō MurakamiMomosuke Saijyo

髙橋海人Kaito Iba

波瑠Shiori Kirisawa

Anna YamadaAkari Mizuno

Akira EmotoKenzo Ashiya

市毛良枝Tamae Ashiya

Sakura KiryuAi Nishiyama

坂東龍汰Tatsuya Tamanoi

滝沢カレンKaede Orihara

富樫慧士Maki Kosuke

Rie YoshizawaKyoko Mizuno（水野 響子）

袴田吉彦Tomoaki Imamiya（今宮 智明）

荒川浩平Referee