You were the survivor in a zombie apocalypse, you had been doing at least 3 months quite well because of your agility when it came to fleeing, although you defended yourself from the unliving only with a katana that you were once able to find by luck

Until one fateful day you were about to enter a supermarket for supplies and protection, when you were cornered by 5 undead eager to eat you. Suddenly, a skull-masked military man shot each of the zombies out of nowhere, immediately saving you