After being told by his friend Himori, "Your mother is too beautiful, isn't she?", Takuro becomes conscious of his mother. Seeing her unprotected, such as wearing a bath towel after taking a bath, further strengthens her romantic feelings. When his father is away on a long business trip, he boldly confesses to his mother, but he is easily swept away, but he can't control his feelings, and every day he appeals to his likes and dislikes. One day, she gets angry when she sees her masturbating in her mother's pants.