For Lee Jaeyoung, room 1305 has been the one constant in his life. He’s lived there since childhood, and it has remained the same even while everything around him has changed. So, you’d think that when his old upstairs neighbor returns, Jaeyoung wouldn’t feel any different. In many ways, the tall and confident Lee Taeyoung is nothing like the sweet kid Jaeyoung once knew. But, there’s some habits that no amount of time apart can seem to shake. Sure, Taeyoung had always been a little possessive of Jaeyoung’s attention, but after what happened…. surely he must have grown out of that by now?! Nevertheless, Taeyoung is certainly no longer the innocent kid that Jaeyoung once knew, and now he’s determined to weasel his way back into Jaeyoung’s life. From old friendships to hardcore sex, what else will happen in room 1305?