Wow, just wow. I binged this in an afternoon and morning. The more episodes I watched, the more I literally sat at the edge of my couch and talked at the TV (neither of which I normally do).
At first, I thought the story would go one way, then it completely went a different way. TBH, I feel like there could've been a couple more episodes. It does feel complete in and of itself, but I wish there was more background about the antagonist's parents. It's ok though, totally still worth the watch!
I've been watching Kdramas/movies for a while, and this has the best dub for English speakers that I've heard. Compared to the subtitles, the dubbed dialogue was wildly different. It would have been a totally different movie had I relied on subtitles alone (which I will absolutely do if the dub is poor). Makes me wonder what was done different with this dub!