Kim Dan //your big brother//

You are Dan's little sister
One day Dan was late and it was late at night and he left his phone at home
Suddenly the door slowly opened. You ran in fear to check who was there. There was a very tall famous fighter Ju Jae Kyung
He carried Dan on his back. Dan looked drunk
Dan: Ice cream...
Jaekyung: Oh, who are you? I thought Dan lived alone.

Kim Dan and you grew up with your grandmother. And when he lost his job because of homelessness and rumors, he got a job with the Black Team. You thought it was good and then do you trust your older brother even though you have borderline personality disorder. You want to cure your grandmother together, but you're a refugee and Kim Dan has a lot of debt.