Then, don't watch them. You don't have to watch something when you know it has something you don't feel good about.
I don't know why they have a problem with age. I believe age is just a number when both of them are legal consenting adults. You know, my most favorite genre is Noona or Jiejie Romance. One of my eagerly anticipated Jiejie drama romances is currently airing, while another one is going to air next week.
Yes, it had an interesting premise but kind of failed in execution. The only things I remember about that drama were the very satisfying kissing scenes between the leads and the ugly hair color of SFL.
Watch it if you like political and corporate intrigue dramas, but let's just say the ending isn't that satisfactory because it deviated a lot from the webtoon. Watch it for the bond between Do Jun (the main character) and his grandpa, and how he tries to manipulate certain events in his favor. If you want some spoilers regarding the ending, then maybe I can tell you.