I've been dating a male friend with a rotten relationship since I was a kid. Naturally, I was playing with my little sister, Miyu, who was different from me. I also entered university and lived alone. When I was enjoying college life sokosoko with my studies ... Miyu entered the same university as me. Miyu... did you like me? I'm ugly. I also came to my house to play before I confessed about Miyu...and after a few years, one day...we finally crossed the line...