Wakou Honna

Tatsuhiko Kido, an Art school student who's staying in his apartment, one day discovers a hole in the wall of his apartment room. He peeks through the hole, but when he does so, he sees his neighbor, Ikuno Emiru, changing her dress and he's caught peeking.. later on she tries to blackmail him into peeping each other every alternate day.

Kido Tatsuhiko moved to Tokyo to attend an art school and start his new life. In his new room, there is a small hole in the wall, which he initially ignored. One night, though, he sees a girl named Ikuno Emiru through the peeping hole. She turns out to be a perverted voyeur who ropes him into her peeping fetish... but they both wind up getting more than they bargained for.