An office sex movie of the girl Asahi Mizuno, she is a boss and one day she went on a business trip with her junior who is also her subordinate and there was only 1 bedroom left in the hotel they rented together. She thought her junior was foolish and wouldn’t dare to do anything to her but she was wrong. Her younger brother saw her undressing and changing clothes and was extremely horny until she fell asleep and he pinned her down and whipped her. She was surprised but thought, well, fucking a few times won’t hurt anything and it feels so good, why not enjoy it….