Andou Hanaka desired to grow stronger, believing she was unable to shield her friend from bullies. Now, upon entering high school, she attempts to join numerous martial arts clubs at her school. Unfortunately, many of these clubs turn her away because of her small and frail stature. She simply wishes to become stronger, but will it prove impossible for her? Everything shifts when she meets her classmate Yoshino "Koha" Koharu. Koha introduces Hanaka to the realm of MMA. Hanaka discovers that martial arts are intended to empower the weak. Her dreams of gaining strength may finally be realized as she steps into the world of mixed martial arts.