They really should have used a younger actor as well if he was meant to be a genuine love interest.
I think that is the main problem. He's just so much older than the leads and look it too.
Then you add to the fact that he's like permanently parked outside the FL apartment or the 2ml apartment, like you never saw the inside of his home ever. And you get creepo stalker.
There is already a Chinese drama version, not to be confused with the Chinese movie version, and they already went this route. If you watched the end of today's episode you'll know what I mean. 🙄
1 
Looks like Young Park is played by this guy.
Pre release. Confirmation for tomorrow.
Then you add to the fact that he's like permanently parked outside the FL apartment or the 2ml apartment, like you never saw the inside of his home ever. And you get creepo stalker.
Are not McDonald's employees on the case? ðŸ˜ðŸ˜