Summeri Takeno, a young employee at a small to medium-sized enterprise, secretly harbored romantic feelings for her married and older superior, Mr. Sato. Seeing him always dominated by his wife, Summeri thought, 'I don't want to lose to her,' and began to approach the department head. To establish a closer relationship than with his wife, she allowed the department head's fetish of 'anal sex' and gradually came to enjoy it, reaching climax! She initiated deep throating herself, having passionate anal sex in hotels etc... The anal affair has become unstoppable.
