I am absolutely puzzled at how much this live action version of the famous webtoon series by Carnby Kim received a very high rating. To be honest it feels very badly produced; those cheap and fake looking CGI's that feel more like stop motion, disappointing choice of actors and depiction of characters (especially Hyun-sook and Sang-wook, like, what!!??) except for Lee Do-hyun, i think the actor does a very good job portraying the smart, cold-headed and rational thinking - to the point he comes off as cold-hearted persona of Lee Eun-hyuk, and the amateurish choice and execution on BGM and audio mixing. And they say it's the most expensive drama adaptation? Certainly doesn't feel like it, and to watch it was very painful, especially knowing how good Carnby Kim's works are. I'll bet that people who like this tv series mostly did not read the original webtoon series, and they're actually loving the concept of the story without realizing how bad the execution and how much of a huge injustice to the webtoon it actually is. This is frustrating.