Sasaki has fallen in love with his friend's mother, Yurika. He doesn't need to be convinced, but he wants to tell her how he feels. But he's not good at talking, and he can't really talk to her. Then, Sasaki accidentally peeks at Yurika changing her clothes. Kokoro by her voluptuous, beautiful big breasts, Sasaki is so excited that he decides to confess his feelings to her. But when he sees the naked body of the woman he admires, his young sexual desire goes out of control...