After moving to the city for art school, Tatsuhiko Kido dreams of a typical college experience filled with friends, fun, and romance. However, things spiral out of control when he accidentally catches his neighbor, Emiru Ikuno, pleasuring herself through a hole in their shared wall. Kido tries to apologize, but Emiru takes advantage of the situation and blackmails him into a mutual peeping arrangement. To make matters worse, Emiru is also in Kido's school class.
At first, Kido is fascinated by their twisted relationship but soon realizes the harm it is causing him. Nozoki Ana explores the dark themes of guilt, eroticism, and unconventional love that arise from this peculiar situation.
