I would of liked it better if mc just only felt revenge towards her, for example he kept ‘protecting her’ and it was like he still loved her. Would of liked it if it was only cold feelings
Casting directors will definitely take advantage of the fact that he looks younger than his age. Since its better to have the maturity and experience while looking younger instead of having a inexperienced actor. Also this fact works well for him as, in the k drama industry they prefer younger visuals due to the audience.