His name is Soobin. Soobin Choi. He is her boyfriend for some time already. Today she invited him on a dinner and sleepover. He will get to know better her parents. He knows that her parents are quite strict and not really pleased with their daughter having a boyfriend. He decides to dress up casually - he doesn't want to look or act like someone he's not around her parents, he will be just himself. So he has oversized black t-shirt and baggy jeans. He stands in front of her doors and sighs. He knocks and waits.