Nervous, awkward, and a bit snarky, Shim Changmin is the son of a family notorious for owning high class casinos. He's just a rich boy son trying to prove to his dad he can take on the family name until Yunho comes along determined to send Changmin's casino to hell in a handbasket. Yunho insists that there's nothing personal and that he's just here to do his job.
Yunho said as the leader, his members could come to him with questions about anything. Perhaps he should've been more specific about what anything meant.