Sakura, my childhood friend next door, is a reclusive unemployed woman who rarely leaves her room, wears the same old shirt, and relies on me to check on her and bring food. Just when I finally get my first girlfriend, Sakura suddenly pounces. I protest, but we end up having sex—and it feels far too good. I love my girlfriend, yet the chemistry with Sakura is impossible to resist. My guilt grows alongside an ever-expanding pile of used condoms.