Back in my hometown, I contact Aoi Tsukasa, the popular porn star I dated four years ago and have not seen since. With a proposal planned for the next day, I want to confirm my feelings one last time. Tsukasa exploits my weakness and aggressively takes control. Since I am not married yet, crossing the line is not technically adultery—and that makes the taboo thrill irresistible. Her relentless, dominant sex continues until morning, shattering both my inhibitions and my sense of right and wrong.