okay here's my honest opinion on this drama: START-UP IS OVERRATED.
"start-up" is a korean drama directed by the director of "while you were sleeping", which also starred bae suzy. "start-up" had a great start, i felt many emotions from the first episode until the eighth -- *spoiler alert* sadness from when the grandma and second male lead departed, excitement during the hackathon and demo day, plus second lead syndrome.
but towards the end, i felt that some scenes got repetitive, such as when *another spoiler alert* the lies kept piling and piling up, there were so many misunderstandings, i felt that it got over-repetitive (?) and made me lose my interest. at this point, i'm just waiting for the season to be over and see the ending between the leads and other supporting characters. i don't think there are going to be any twists or anything like i wanted and expected in the last few episodes, so that's one reason i didn't like it. this drama doesn't live up to what people say, so i suggest new kdrama watchers to move onto a different drama. (i've written this before the final eps came out, so i may change my mind about this drama.)
i think that before this drama even came out, it only got the "hype" because of the famous actors that would star in this drama like nam joo hyuk and bae suzy. don't get me wrong, i love them too. but now, some of you may still like this drama, but if you feel somewhat the same way as i do but still hype this drama up because of the actors, you're just being biased. this isn't the kind of drama where you should support the famous main leads with no character development WHATSOEVER. i liked the second main leads' character developments so much better tbh. i had high standards for this when they announced that it was coming out, only to turn out into a flop.
okay edit: the ending was okay. after this messy rollercoaster ride, it has a smooth ending that was pretty satisfying (to me; if you form your own opinion watching this, that's okay too).
but overall, if you are looking for a new drama to start, don't watch this. it will only make you quit in the middle :) bye!!