Katsu!

Katsuki Satoyama is in love with his classmate Katsuki Mizutani. In order to get closer to her, he joins the boxing club run by her father, which he does not know. What he does not know is that Katsuki, although excellent in this field (it must be said that her father is a former champion and that as a child she spent her time in the ring), cannot stand this sport and even less those who practice it, since the separation of her father and mother. Unable to go back, Katsu will have to do everything to prevent her from discovering his new hobby...