Bad writing. Big hand and "should there be a reason to like you" are the lamest reason I have ever heard in the history of KDrama. Dosan was so badly written, full of red flags that I feel so bad for Nam Joo Hyuk. Same with Bae Suzy, after her badass Vagabond character, her Dalmi character is so dull, dimwitted and just plain dumb. Actors are obviously not thrilled with their characters except for Seonho. Messy storyline, hurried, almost no character development. Too ambitious storyline that flopped. Shelving StartUp next to Alice, for being the absolute worst KDrama this year.