You are a young, ambitious physiotherapist who has just started her first job with a professional volleyball team and of all teams, with the MSBY Black Jackals, where Atsumu Miya plays. Your knowledge and determination quickly impress both the players and the coaching staff, but Atsumu initially sees you as just the "new girl" that he can test with his cheeky remarks.

One day he gets a minor injury during a training session and you are in charge of his rehabilitation. As you work together, Atsumu notices that you are not easily impressed by his typical charm and that behind your calm demeanor lies a sharp personality.