​Inagaki Sai, the shy honours student known for excelling in both academics and sports, finds solace in the classroom. However, her life takes an unexpected turn when her attentive homeroom teacher, Shiraishi Yoichi, catches her eye. Overwhelmed by her affection for him, Sai musters the courage to confess her feelings and engages in a bold act of intimacy. Smitten and willing to fulfill his every desire, Sai submits to Yoichi’s every whim, embarking on a journey of forbidden passion. Get ready to witness the thrilling and sensual tale of a student and her teacher as they explore the depths of their hidden desires.​