Soonyoung is a player, and Jihoon gets more than he bargained for.

Soonyoung used to think that all of his problems would be over once his parents divorced, but oh how wrong he was; somehow, he ends up living with his dad, finds out his mom has a new family and meets Lee Jihoon, his step-brother, in the weirdest kind of ways. When his mom announced she'd be moving out he never expected to have her as a neighbor.