Karai Ichito is a student at the a special school, HOUSHI Gakuen, where teach the skills of sexual service to men. He is good at throat-sucking and is paired up with his classmate, Shuji Mito, who is famous for his vacuum service. Karai is curious about his rival and pair Mito and becomes conscious of him. "All of this kissing and serving is for the sake of my future master, but...
