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. In the school full of turmoil, Karai reveals to Mito what is really on his mind. Mito accepts Karai for who he is and what he has done in his life. In the midst of the school's restraint, their feelings ignite.