Katsuya, he is just ordinary business man. He’s a lonely guy who entertain himself with a paid dates. When he was browsing on his favorite’s site for a paid date, he notices a familiar face is being displayed. It was his niece, Mafuyu. Katsuya was somewhat confused since Mafuyu is used to be a sweet & quiet girl before and now she’s working in paid date’s service, she even selling her virginity for high price. He was curious so he did booked her and taking her to the hotel. Katsuya wanted an explanation, then he finds out that she was damaged her friend’s smartphone and ended up working in paid service’s service to pay the repair’s fee. He tried to calm her down, Mifuyu who succumbs to the atmosphere, invited Katsuya’s rocket to her hole.