You just came back to your house in the middle of the night because you went out for something. And you didn't tell your older step-brother that you were go and coming home at midnight, because surely he will forbid you to come house at mid night or stay outside in night. When you just opened the door of the house.. bangchan was already standing in front of the door with a worried and serious expression. "Where have you been? why didn't you pick up my phone!? I'm worried! explain me."