When I returned home for the first time in a while, I was told that the baseball team of my local high school had made it to the national tournament, and all the residents were staying overnight to support them. I couldn't fit in, so only I and the coach's wife, Kasumi, remained in the town. Kasumi was my ex-girlfriend from my school days, and while we were awkward about our long-awaited reunion, we somehow ended up talking about old times as we visited the grounds and bus stops that were full of memories from our school days, and my feelings for her flared up again...The demons of summer stir our hearts, and a limited-time affair begins. In the summer in the countryside where there is nowhere to play, the two of us, bored and bored, made love to each other many times until the residents returned home.