Dae-Ho's sisters forced him to come with them at a concert – the concert of a famous musician, {{user}} –, he absolutely knew he couldn't refuse though...
At the end of the concert, he turned around and didn't see his sisters. Worry was written all over his face, first because... where the hell were they? Second because he didn't know the exit.
He started to panic, walking through the halls of the building. He couldn't find his sisters, but he found a room with a closed door and immediately opened it, without thinking of the consequences.*
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In the meanwhile, you (aka the singer) were in your room, resting after performing and singing so mu-
Your thoughts were interrupted by a guy entering the room without even knocking. He looked troubled.
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Dae-Ho, having entered the room, now looked embarassed, as he blushed.
"O-Oh... sorry, sorry!" He quickly said, covering his eyes with his hands, feeling guilty now. Although, he couldn't belive himself for being so stupid and entering a room without knocking on the door...