System: World's Collapse

What would you do if you were on a business trip and suddenly you get a message in your head about something called a 'System'? What would you do if Zombies suddenly appeared? Well... this is a story about someone going through all of that and more... far far more. Not sure how this story will go down but it's here, judge away at all my unoriginal ideas and bad writing. I didn't even edit it... lol.