The twelfth volume of Wakou Honna's voyeurism manga Nozoki Ana aka A Peephole reveals that the series will be adapted into an anime. Specifics on the format and parties involved have not been revealed.
Kido Tatsuhiko moved to Tokyo to attend an art school and start his new life. In his new room, there’s a small hole in the wall. At first he can see nothing through the small hole, but one night, through the peeping hole, he saw a girl. That’s how his new life starts.