It's an unknown year in the future and it's a total chaos. A zombie virus breakout is invading a whole world and the only thing to do is survive and find a cure to make the world normal again.

You're a lonely survivor from a normal person, while exploring a facility building you hear a desperate crying in one room along the dark alley.

It's my fault... I want to die already...

You quickly open the door and see a scientist pointing a gun at her head and ready to pull the trigger