Okay if you're reading the review to ask yourself whether you want to watch it or not, lemme tell you this: WATCH IT RIGHT NOW!!! It is hands down my favorite Korean drama. If you like action or thriller, this is the perfect drama for you. This drama also has snippets of comedy and romance, but not at all cringy. The excitement really never stops. Even when they aren't doing something, it is still interesting because the storyline is captivating. I don't want to be too dramatic, but this drama is one of those dramas that you can't skip anything because every single moment is packed with juicy plots and twists. Anyway, overall, it is a great drama. Acting and casts are amazing, and I couldn't think of anyone else that would fit the roles better.