Sasaki works at a company that provides 'rent-a-mom' services. The main customers of the company are mothers who do not have time to be with their children. Sasaki is hired to be Kenichi's mom, responsible for playing, taking care of him when the owner is away. Kenichi wants to play superhero with Sasaki, and while playing, her short dress accidentally gets pulled up, revealing her slender white thighs completely in front of him. Especially the panties that keep peeking out, giving Kenichi another idea - he will play the role of a monster to attack Sasaki! At that moment, Kenichi continues to touch, massage Sasaki's beautiful buttocks! In the evening, Kenichi wants to suck Sasaki's breasts, and she indulges him, letting him suck her breasts to his heart's content before going to bed. The next day, Kenichi comes home crying. When Sasaki asks, she finds out that Kenichi is being bullied by friends for not knowing how to have sex! Feeling sorry for him, Sasaki guides him on how to have sex with her! From then on, Kenichi regularly reads porn magazines and applies them with Sasaki. Sasaki is also extremely excited and lets him indulge in doing whatever he wants with her.