Shiroki just wants a little bit of peace and quiet—time to chill with his cat and relax in between all his university classes. However, his next-door neighbor, Hayato, seems unable to do anything without making a racket. Which is the last thing Shiroki wants to deal with on any given day. And so life goes on, until his cat decides to climb onto Hayato's balcony, leading Shiroki to an unexpectedly furry discovery.