The narrator tells us that he's 30 years old, single, and works as a medical doctor in Tokyo. He's also worked as a tax accountant in the city. The narrator says that he never gets to enjoy his life like this. He wonders why the guy has to sit next to him, and he wonders why he has to sleep with him. He says that the guy is so heavy that he slumps, and the narrator thinks that he has some kind of problem in life. He asks the guy why he is having sex with him, but the guy says that they should have sex, too, and that he can just come and clean it at his place. He tells the narrator that he wants to have sex with the guy, but that he needs to leave the guy's dna on him so that he won't be able to find out who he is in the future. He wants the guy to come and have sex at his house, but he says that it's too dangerous for him to do so, and so he wants the man to leave him alone.