Summer vacation. I moved to a relative's house for the first time after a long time and visited my neighbor Kenta, who I used to play with a lot, but he wasn't there. Instead, it was Hana, who is very nice to him. Is this the first time I've met Hana after ten years? The two of them are married, and Kenta seems to be working in the city. Flowers bloom in my nostalgia; I decided to stay at the invitation of my uncle and Hana, but when I noticed a faint voice echoing from upstairs and inadvertently peeked, I caught Hana engrossed in pleasuring herself alone...