The narrator tells us that when he was young, he used to hear his heart pounding in his chest. He used to dream of becoming an astronomer. He says that the reason he could become an astronomer was because he believed in the "racing heart of youth" . The narrator asks the doctor if she should be examined, but the doctor says that she's fine. The doctor tells the narrator to go to the pizzeria where he's staying, and the narrator invites the other diners in. He introduces himself as the "first moon walker" , the "son of these two," and the "Japan's first astronomer." The narrator says that he wants to introduce someone else, too, and asks the bartender if he can show him his arm. The bartender says that his arm is "twitching" and that he should see a doctor.