First of all, I did not expect this drama to have a 5+ rating with almost everyone; maybe I'm the only one who did not like this much.

Okay, let's start my review now. I am a fan of sci-fi thriller dramas, but I just don't feel this one. On the 4th-ish episode, I already knew who could be the chairman of the smart earth (maybe because I already watched a lot of thriller dramas), and yes, there are a lot of plot twists, but some of them are meh. And the primary topic of this drama, whether aliens are real or not, is not even answered. I really did not feel anything about this drama. Not even curiosity, chemistry, sadness, or anything. That's why this is the most unsatisfying drama for me.

12 episodes are enough to solve the thriller in this show, but the main topic that involves sci-fi is whether aliens are real or not? Those 12 episodes are too short. The actors and actresses are big time and delivered really well in this show, but the story is not it. Hence, 4/10 for me.