Hitomi notices that her son Masato is acting strangely. Thinking that he is just going through puberty, Hitomi doesn't think much of it. However, the situation changes when Masato starts touching Hitomi's body while she is napping. He caresses her gently and carefully with just the right amount of force, and Hitomi reaches her limit, crying out sweetly. Masato, who never expected Hitomi to be awake, hurries to apologize, but... Hitomi, overcome with pleasure, says something unbelievable. "Hey, touch me more like you did before..."