Takuya, the nephew who came to Tokyo for work, visited his uncle and aunt who live in an apartment in the city. "Long time no see, how have you been?" His beautiful and youthful aunt Yuri greeted him. This was Takuya's first meeting with his aunt since he came of age. That night, Takuya was allowed to stay over at his uncle's place as a favor. After his uncle left for his night shift, Takuya ended up having drinks with his aunt, and they ended up talking about sex.