it's nice not being dead with you (Scarian Zombie apocalypse AU)

Grian was used to being on his own, Scar was not.
Scar was used to getting along with almost anyone, Grian was not. the two were were an unlikely pair but a strong pair none the less. and then everything went to shit. a dangerous virus spread through the world, infecting everyone else everywhere. after Two years Scar gets shot by a certain avian.