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. "I can't take your eyes off her bewitching tongue!"
Mito is very upset when Karai is approached about taking him on.
Mito tries to push aside his feelings, but his childhood friend Yokoo points this out to him.
