let's start off with the bad things about this drama. leads' story lines went in too many circles for my liking. this could've cut the series by 10 episodes at least. however, SY and LY acted the hell out of these characters. it's probably the best acting that i've seen from both of them. surprisingly, i enjoyed the side couples' story lines. the other story line that should've been shorter, was her mother passing away. k!lling an elderly person has become a standard so it ends up giving NOTHING to the story. the music was really off putting at the times. they were targeting international audience but it fell flat. i would've preferred if they used already existing english songs.

also, this drama have so many incredible one liners "the harder i work ,the harder i will fall", "the snacks will expire if you leave them out for too long", "it's your business if you you wish to stay in the past but i'm not obligated to wait for you in the same place" etc