Tsukamoto was sent on a business trip with his female boss, Tachibana. Since this trip lasts for two days, both of them have to stay overnight at the hotel tonight. Recently, the company has implemented a cost-saving policy that only allows the two of them to share one room. With no other option, they can only share a room together. For a long time, Tsukamoto has been enchanted by Tachibana's alluring body, and this seemed like a godsend opportunity for him. After walking all day, Tachibana felt a bit tired, and Tsukamoto offered to give her a massage. But he didn’t just stop at a simple massage; Tsukamoto continuously touched and groped Tachibana's body, even daring to touch his boss's private area! When Tachibana went to the bathroom, he could comfortably watch her masturbating while she was naked inside. Knowing that his boss was also craving for sex, later that night, when she was asleep, he boldly assaulted Tachibana despite her weak resistance. After that time, Tachibana seemed to open up more to him; she let him make love to her with the condition that he must keep this matter a secret from everyone.