need a cute korean (or chinese) modern movie: enemies to lovers

Penny Pinchers has all the elements you're looking for

Not really modern, but a vintage classic is He Was Cool

https://mydramalist.com/113-he-was-cool +1

I love this movie soo muchhhh. I laugh so hard every time when i watch it!! Scene with rabbit and zebra outfitt... Epic! Plus it is movie ahead of its time. There is talking about some things that are not common even now.