Sayaka, a mother-in-law who lives with her husband's stepchild Yoshio in a house where her husband is away from home. Lately, I've been conscious of Yoshio as a man. However, Yoshio also fell in love with his mother-in-law and fantasized about Sayaka being raped by his friends, and was crazy with jealousy. I sneak into the bedroom of Sayaka who sleeps alone and touch the body. Before long, their thoughts overlap...
