This is a great crime fantasy drama! Although there are many negative comments, too many are really unjustified. The drama is very entertaining and the actors did a great job bringing these characters to life. The leading couple has great chemistry and rapport, although there were not many romantic scenes, the ones that they had were nicely done. The antagonists also did a tremendous job delivering spine-chilling scenes. It is true that there are some things about the Abyss, a soul-reviving marble, that were not explained and it could be bothersome to some viewers. Also, the end is really nice but it felt a little bit rushed, but overall speaking, the drama is really entertaining. Enjoy it!