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As a lowly yakuza, Kousuke sells his body to men for a living. And although he usually leaves the place quickly after sex, he accidentally finds himself waking up in bed with a customer the next morning. What's more, for some reason, he can't remember last night at all. Despite seeing Kousuke's tattoo, Inami, an incredibly handsome customer, asks him to spend one more night with him. Inami's strange friendliness just confuses Kousuke at first, but he becomes suspicious of him after hearing a rumor about "Pierce", a drug recently gaining popularity on the market that can make one's memory blurry. In fact, Inami is a detective who is also looking for the source of Pierce......
As a yakuza underling, Kosuke makes a living by selling his body to men. Even though he usually leaves quickly after sex, he inadvertently ends up staying with a client until morning. And for some reason, he has absolutely no memories of what happened the night before. His client, Ryoichi, is incredibly handsome... and even after he sees Kosuke’s tattoo, he asks to spend another night with him. After hearing a rumor that a drug which makes people’s memories hazy during use called pierce has started circulating recently, Kosuke begins to suspect him. However, Ryoichi’s overly friendly behavior keeps throwing him for a loop. But Ryoichi, who is actually a detective, is also tracking the source of pierce...