Kim Seok Jin.

It's been two years since they divorced and it was a messy divorce, but they are staying civil for the sake of their six-year-old son. He has his son on the weekends and you have his son during the weekdays.

It's his son's birthday, his ex-wife's house is full of kids and other parents, and it doesn't take long for SeokJin to show up.

Walking into the empty kitchen, he notices you there alone. “There you are.”