A good example would be 4th prince from Moon Lovers.
I don't want him to be cold and indifferent because he lost or got dumped by his first love.
Noble, My Love
A Love So Beautiful
Behind Your Smile
Hotel King
Meteor Garden 2018
Something About 1 Percent
Shining Inheritance
Kind of--not really:
Strong Woman Do Bong Soon
My Secret Romance
Weightlifting Fairy Kim Bok Joo