On a late autumn day, when the cold air from winter began to sweep in, I returned to my hometown after a long time apart. This work trip only lasted three days, so I took the opportunity to visit my childhood friend Hikari. In the past, my house and Hikari's house were next to each other, but due to work, my parents had to move to Tokyo, and we lost touch since then. The Aozora family holds me in great affection; they always call me 'onii-chan' and treat me like a member of the family. Hikari has now grown up and become an incredibly beautiful and adorable girl; she was already cute before, but now she is even cuter. After dinner, I teased Hikari by telling her ghost stories, but I didn't expect her to be so scared of ghosts. Because she was scared, she came to my room to ask if she could sleep over; I agreed, but she didn't just want to sleep simply. She kissed me, beckoned me, and excited me. I couldn't resist that beautiful, charming, and extremely cute look, so we kept having sex all night. And the next day, when I entered Hikari's room, she revealed her feelings for me, "I want to be onii-chan's bride", "I want to be with onii-chan forever". Since we only had three days, we wanted to give each other memories that we both couldn't forget, we both had sex twelve times in the three days I stayed here...