Takai Mizuki, she was the first friend I ever had. A friend, at that. Three years ago, before the high school entrance exam, I raped her. After she entered high school, we naturally stopped talking and I ended up alone. Of course. Then one day, she suddenly asked me to help her study... I was confused, but I ended up teaching her in the library after school. And then I found out about the feelings she had for me three years ago... A twisted coming-of-age story about a clumsy male student who doesn't know how to keep a distance from girls, torn between pure feelings and sexual desire.