i watched this as it premiered and have since watched it again at least 5 or so times , and ive got to say i do not get the disdain for how the main couple ends up with eachother. maybe because i knew when i started they would end up together it just seemed obvious from the first episode. they make ji hoon unlikable and rude imo (which is understandable, he let a homeless man with amnesia into his home... and he touches all your stuff, id be rude too),,, so i dont feel bad for him.its hilarious watching hyun jae root for his sons first love and then decide to just steal his girl it gets funnier every new watch. but if you didnt expect this i understand how it could make you upset. the comedy and tropes this drama uses are my absolute favorite truly nothing wrong with this drama besides the time travel plot line is iffy when you think too much but i dont mind since its not important if you just trust it works in their fictional universe. very comforting show with a good soundtrack. hidden identity is done really well here and the identity reveals are drawn out for different characters in the show which keeps it entertaining the entire time because the reactions are hilarious.