Kawaikereba Hentai demo Suki ni Natte Kuremasu ka?

Keiki Kiryû is a perfectly ordinary high school student. One day, while cleaning the calligraphy club room, he discovers an anonymous love letter addressed to him. Everything could have been perfect, if this envelope hadn't also contained a pair of panties. Thus begins for the young boy a quest to find its owner and, who knows, perhaps start his romantic life. But, can you really date a pervert even if she's cute?