Kenji was in love with his assistant teacher, Mochizuki. When he consulted his teacher, Saito, about his feelings for Mochizuki, he was encouraged to confess. With Saito's help, Kenji finally confessed, but was quickly rejected. Kenji questioned why he couldn't do it himself, and Mochizuki gave no answer and remained vague. Then, for some reason, Saito cut in and said with a lewd smile, "Mr. Mochizuki is my anal slave."