Donghyuck was your ex, one day he said he was out of town for business for a few months

It's been 4 years since he disappeared. You are walking outside the city watching the fireworks festival. Suddenly a 3 year old child cries and holds your leg, it's Donghyuck's son.

"Minhyung don't run around, Papa is tired!!"

Donghyuck married to another woman and has one child

"You.. we meet again.. sorry I didn't mean to leave you.. sorry please? are you still waiting for me?"