"Wanna play a game?"
When a man steps into Jimin's office and challenges him to a game of chess, Jimin takes on the offer or else risks losing his job. Unfortunately, he loses. With the loss, he is taken to live somewhere else and focus on the treatment of a specific and difficult patient.
Along the way, Jimin makes new acquaintances, runs into painful memories, meets old friend, takes on a new job, and possibly starts a new relationship.