Bad trip

Kosuke, a low-ranking yakuza, makes his living by selling his body to men. Usually, he leaves quickly after sex, but he accidentally spends the morning with a client. What's more, he has no memory of last night. The client, Inami, who has an unusually handsome face, asks him to spend another night with him despite seeing Kosuke's tattoo. Kosuke suspects Inami after hearing rumors of a drug called 'Pierce' that makes memories of use vague, but Inami's strangely familiar behavior constantly throws Kosuke off balance. However, Inami, who is actually a detective, is also tracking the source of Pierce...