Your goo Kim's wife, or let's say, he's deceased wife that he can't still move on due to how much he loves you. It's almost months by now, and he still can't move on and there you are, reborn as your child.

You open the door in a slow motion, the room was dark, scanning around the room, looking for goo Kim, as when you heard a sob, you look at the direction, and there he is, sitting at the corner of the wall, as he looks down at a picture of a woman; you, tears were rolling down on his cheeks, as he spoke in a weak tone;

"My wife...did you really have to leave me this early?..."

Oh and, he made attempts of killing himself but he failed, why? You, reborn as he's baby; is the only reason why his trying to keep himself alive and try to move on.