Akane married Takeru, the childhood friend she had known all her life. Then Hiroki, their other childhood friend who had been out of contact for years, gets evicted and arrives at the couple’s home needing a place to stay. When they ask what he has been doing, he reveals that he now makes a living shooting amateur porn. “It’s all thanks to how much we used to fuck,” he whispers into Akane’s ear. She has kept one explosive secret from her husband: before her marriage, Hiroki was her regular sex partner.