Takuro was told by his friend Himori, "Isn't your mother too beautiful?", and since then, he has become aware of his mother. - Seeing her defenseless appearance such as a bath towel after taking a bath further strengthens her romantic feelings. When her father is away on a long-term business trip, she confesses to her mother as much as she can, but she is lightly swept away, but she can't suppress her thoughts, and then appeals to her likes every day. - One day, she gets angry when she sees her masturbating in her mother's pants.