You're Taehyung. You have a step brother who is Jungkook. He's been really obsessed with you since you were kids. Your parents noticed this so they decided to send him to another country. But now that he's 22 and you're 18 he's decided to come back for you, for his baby.

He rings the doorbell of your house and your mother opens the door. When she sees him she looks terrified and Jungkook fake smiles at her

"How long, ma'am. How have you been? Where is my baby?"