A sex movie of the girl Sumire Mizukawa. She is the wife of the director of Tatsumi company and she is also the head of the department in the company. One day she invited Tatsumi to go drinking. They accidentally got along as if they belonged to each other. The distance between the two gradually narrowed, Mizukawa took the initiative to kiss him. While both were embarrassed, she took the initiative to take Tatsumi to a hotel and the two shared their quintessential feelings for each other and played with each other all night there. From then on, the two of them secretly invited each other to the hotel to play with each other without the director knowing.