Kato started his own business at a young age and has a busy life. His subordinate cares for him and arranges for him to be a housekeeper. He tries to push her away, complaining that he is bothering her, but the housekeeper, Iroha, insists on coming to her place, saying, ``I just want to clean.'' Kato can't take his eyes off her as she cleans with her butt sticking out. Eventually, Iroha uses the massage as an excuse to close the distance and get close to him. Noticing that he had an erection, she smiled and reached for his crotch. However, that was just the beginning of her true nature...