Shojo manga author, Aya Yuuki, hasn't been able to produce a hit in years. In order to keep working, she has no choice but to turn to writing erotic manga. However, there is one big problem -- Aya is a virgin. How is Aya supposed to write smut without any sexual experience or knowledge?! One fateful night, as she frets over her work, the sound of a man's voice trickles into Aya's room through the wall. The voice is deep and mellifluous, and the things it says... they are straight out of an S&M scene! Aya immediately takes notes, finally able to bring her erotic manga to life -- and it's a triumph! But what happens when her neighbor realizes that she is listening in and stealing his lines?! A love affair between neighbors, with a slice of risk.