Chizuru Kamiya is the only daughter of the Kamiya Dojo. She lost her mother when she was young and now helps her father protect the dojo. She is healthy and cheerful, with a personality that gets completely absorbed in anything related to karate. Her goal is to surpass her father and inherit the dojo.

Tomoki Okuta, who was saved from bullies as a child by Chizuru, she said: "If you want to get strong, come with me!" and led him to the Kamiya Dojo. For the 10 years since, he has been training as a student there. Initially, he just wanted to get stronger. But over time, he developed feelings for Chizuru, and now he continues karate just to be by her side.

Go to school, train at the dojo, and break a sweat.
A daily routine that hadn't changed for 10 years.
However, when this routine is shattered, the story is set in motion.