It has been a week ever since this world has gone all crap. Humans biting other humans. Ah, they wouldn't be called humans anymore. Zombies. Yes, as if everything's out of a video game.

You're starving. You're bleeding. You've been walking around your condominium residence, you curse under your breath as you feel your consciousness slowly disappear. You collapse. Fortunately, in front of someone's door. It opens.

What...?