You need to step into the shoes of the antagonist to watch this drama and its too unnecessarily stretched. The original niche for the drama includes target audience that expect rom-com in any drama they watch and its delivered in a very deliberate manner. It was unnecessary. I mean they are in a virus aka zombie apocalypse which they call it as. The plot is very poor and its quite clear whats going to happen. To continue the story, they are forcibly moving to other places and doing stuff thats not needed or demanding. I just cant write more coz the entire drama is a mess. Sorry to say, but thats the truth. The origin or the concept of patient zero is not at all touched apart from harnessing concepts like teen pregnancy, abuse, social barriers, etc superficially. Instead of focussing on key issues, they just targeted so many random issues all at once with no depth in acting by the novices. The villian is like undefeatable and wasnt promising at all. The other characters didnt have any development. If I had to watch it through my perspective, there should have been much investment on development of story, how the virus originated, at least should have made it understandable. These observations accounts to only 1 or 2% of the experienced mess. The movie goes nowhere expect for the niche expecting a second season.