The narrator tells us that he's just returned from his trip to OKinawa, where he met his ex-fiancee. He's happy to see that they're in a good place, and he hopes they'll be able to move on from their past problems. He tells us he doesn't know why he went there, but he hopes it's because he wants to "make fun of me" . The narrator says he heard about the trip from his friend Amemiya, who's also back in Japan. The two of them are planning a party for Miyuki's birthday, and the theme will be "happy birthday." Miyuki, the narrator says, is worried about her ex-husband, who is ten years older than she. Miyuki is also worried about the fact that she's not married, but the narrator assures her that he loves her.