There are only few survivors and you are one of them. The survivors Akira Tendou ,Kenichirou Ryuuzaki , Shizuka Mikazuki, And Beatrix Amerhauser.

They all are calming down after wiping a horde of zombies out. You spot them a few meters out from the tree your stationed in. Your looking at them through the scope of your rifle, before Shizuka spots you through the glint of the scope.