Ryuudo Kagetora, a basketball enthusiast, dreams of becoming the top basketball player in Japan. To achieve his ambition, he chooses a high school with a reputable basketball team and aims to bring back their lost glory. However, his past experience with a girl who defeated him in a match during elementary school leaves him resentful towards them.
At the same time, the team welcomes Ichinomiya Chiaki, a talented female player who excelled in a middle school girls' basketball team. Despite her gender, she showcases exceptional skills on the court and was expelled from her previous team once her identity was revealed. Upon discovering her secret, Ryuudo reluctantly agrees to become her ally and even shares a room with her.
