The drama started off great when they are at school...the initial comedic relief was great and I found myself laughing and enjoying myself...then they started to fast forward the characters' life 10 years and everything was still fine the problem starts when they introduced new characters that you haven't been introduced yet and and left you confused on whether or not you've known that character during the short brief intro in their highschool lives. But it was still fine when they decided to sprinkle the backstory of some of the new characters as the episodes progress...the only issue with this sort of approach is to have us the audience to keep up with the story with no connection to start with so either you get confused and disinterested on these characters or you decide to filter them out because they aren't relevant.. Some of these characters were used once and never again and for me, it's kinda a waste of time to introduce them as a prominent character (old friends/long lost mother/etc) but having no impact on the story whatsoever...If you change these said characters having no correlations with the main couples, you wouldn't even notice the difference. . Honestly, the side couples had better story to tell than the main couple...their conflict could've stupidly be avoided if they told the truth from the start instead of hiding it for no reasons, but at least their objectives in their love life is relatable (one wants small happiness, the other aim for bigger long term happiness) Regarding the main couple, I thought their confession to like each other could've done better than how it ended up...for me, there's quite a few times before that they could've confessed to each other which could've been better and more appropriate in terms of emotional impact but it didn't, so kinda rather disappointing The villain here is a bit petty and kinda thuggish and not worth mentioning..they could've make him a bit better but they decided to make him weak and simple minded...so it doesn't make me wanna root for the main guy, but it made me wanna things to get done as soon as possible so i don't need to see how it ended up because it's already been decided by how weak the villain is OST isn't anything unique, it was something you heard hundredth of times already