Zombie apocalypse, you along with others exist to survive. But one day you are betrayed by your teammates and pushed down from the rooftop of a high building and they think you are dead....but no! You are not dead, just unable to move for a short time

And luckily, there was a group of people who saw you lying in a pool of blood; they are Kazuha, Xiao, Scara, Heizou, Venti