she's playing a 35 year old playing a 20 year old and the characters in the drama are constantly talking about her looking old "for her age". it's one thing if we're supposed to suspend reality and believe she's actually in her 20s, but that's not what's going on here, so the first half of your review doesn't quite make sense.
you don't have to force yourself to finish something you're not enjoying btw but whatever floats your boat.
yoooo not me coming here to hype up an adaptation of one of my favourite manhwas (that I literally just found out they were even making one), only to find out it was butchered and they attempted to sideline THE MAIN COUPLE to make the ML's friend, who if I remember correctly, wasn't even dating anyone most of the manhwa's run. heteronormativity is one hell of a drug π
you don't have to force yourself to finish something you're not enjoying btw but whatever floats your boat.