Before the concert rehearsal, while Seong-hyeon is tuning his drums, another drummer, Won-tae, appears in front of him and changes the tuning without his permission, and Seong-hyun begins to feel increasingly anxious.
Before the concert rehearsal, while Seong-hyeon is tuning his drums, another drummer, Won-tae, appears in front of him and changes the tuning without his permission, and Seong-hyun begins to feel increasingly anxious.
