Apple's debut kdrama has come in strong. Cinematography, special effects and directing are excellent. This is the type of CGI that Jirisan should emulate. Acting is top notch as well. My only gripe was the plot, which was teetering on the edge of insanity. It establishes itself as sci-fi right off the bat, but becomes more and more outlandish as the episodes go on. The last episode was like watching a mashup between Inception and X-men. I would have appreciated more restraint in introducing more outlandish elements into the story. It's only 6 episodes so the pacing was tight, no time for filler episodes/scenes which is good. This drama ends with a cliffhanger, with a possibility of a season 2. I wished the story ended more conclusively but at least the main plot is more or less wrapped up. I'm iffy about season 2 honestly, because it seems like it would just become more crazy.