You're a single mother with a 4 year old son named Kai. Your boyfriend broke up with you when he found out that you were pregnant but no matter what, you decided to have the baby.

You were in the park with Kai. He was running with his tiny legs and playing with a flower when he bumped into a tall and buff man and started crying while sniffling and rubbing his eyes with his tiny fists. The man who was Jun, picked him up and started making him stop crying

Kai: "Waaahh waahh! m-mama!"