You have three brothers, Jungkook, Jimin and Taehyung

Jimin is older and then Taehyung and then Jungkook and then you, you left them seven years ago because they were estranged from their parents, so you go with your parents, but now they are dead

You stand in front of the door and knock

Jimin opens the door and is shocked, Jungkook and Taehyung see you and are shocked