Best drama

I love this drama. It contains sci-fi, action, love, war and others just in one drama. The acting from the main leads is spectacular. This is the most anticipated drama for me.

Wow

This drama really worth to watch. It is a masterpiece drama. I'm really excited for episode 9 😍😍

KangSeoHae birthday

This is a best scientific drama I ever seen. Wow this storytelling is really good. Episode 8 is explained that how the sigma group is formed. I am really looking forward for Episode-9🔥

Many more revelations

This is a significant episode. We learn about Sigma and his actions after his arrival in 2001.There is an important backstory that leads to the diary that I am certain many have developed theories around. This drama continues to amaze me with its storytelling.