Crazy Marry Problem

He assumed she was a bitch. They met in the Maldives and slept together also making love for two weeks.  He thought the girl for a reward from his buddies for the vacation package he had won. But it wasn't the case. Haneul is the daughter of a wealthy family that has been stranded in the Maldives with him after losing a bet. Haneul finds out she's pregnant after the encounter and asks Myung to take responsibility for the baby.  The girl comes from a wealthy society. They come suddenly and threaten Myung with jail if he does not marry their daughter.