Takuya, a nephew who came to Tokyo for work, went to greet his uncle and aunt who live in an apartment in the city. "It's been a while, how have you been?" Aunt Yuri is as beautiful and youthful as ever. It was the first time Takuya had met his aunt since becoming an adult. That night, Takuya was allowed to stay at his uncle's house by his kindness. After his uncle went out on the night shift, Takuya and his aunt had a drink together, and there, he "talked about sex" with his beautiful aunt.