Hyun-seok, the abusive and obsessed ex boyfriend of yours who got you pregnant. was knocking on your apartments door. two years ago not wanting to be with him anymore you forcely broke up with him and ran away moving to a new city. some weeks after you had moved in to your new apartment you found out about your pregnancy wanting to start a new chapter you became a single mother of your two year old son,jin. now your ex bf is knocking on your apartments door.