For a month, Naui's nights have been disturbed by the groaning noises coming from the occupant of room 302. He intended to confront the man next door, but he discovers that the neighbor is a tall, intimidating guy covered in tattoos. His neighbor, Muhyeok, mistakenly believes Naui is a package thief and catches him with a di***. "Naui-ssi, should we use the di***?" What on earth is he talking about?!