Season 1 is surely the best, but Season 2 is also amazing. Compared to Season 1 where the characters are stuck and staying inside their apartment, Season 2 explores more and shows the condition of the outside world. Season 2 has a more serious tone since it includes the military and government. It has political and power struggle that shows the perspectives of various characters - from what's happening with the higher ups who controls the situation and between the civilians who have to survive together. While for the monsters, there's now more variety of them from dangerous to harmless, and even those who are normal yet have special traits. But at the end, they're still humans who have their own feelings and stories behind their transformations.

The new characters are necessary to the plot and it completes the worldbuilding for this Season. My favorite characters are the soldiers and they deserves more credit for their important roles. The best part is when a group of soldiers made a coup against the evil government officials who were mass murdering the people for their own greed. Soldiers are like puppets who only follows orders from their superiors, but I'm so glad how they have their own mind and put their humanity first. It was so refreshing to see a better representation of the soldiers in this drama. I love how they organized a big shelter for the survivors, protecting them and risking their lives outside while also researching about the monsters. I also love how this Season didn't really have villains, there were bad guys at first but they easily got rid of them and even the monsters themselves showed compassion to the humans. For most part in this drama, the focus is on the teamwork and growth between the military and civilians who are working together against the monsters, while the old characters are navigating their new journeys with new people and adapting to the outside world with the monsters.

Season 2 did a great job with its worldbuilding, showing the perspectives of everyone and their different motivations while trying to survive from the monsters, humans and their own selves. It also gave us a grand finale with the return of an old character on his new form. Season 3 is even more highly anticipated and it might show us the epic battle between all kinds of monsters.