Shiho and Reira are ambitious track teammates whose dreams are derailed by their predatory advisor, Inose. After Shiho attempts to protect Reira from a scandalous video to save their club, she discovers that Reira has already succumbed to Inose's sadistic manipulations. Trapped in a web of psychological and physical control, both girls find their bond shattered as they are forced into a life of submission to their teacher.