Apocalypse, a term being where the world is coming to an end. Chaos everywhere, nowhere safe. This term comes to reality when monsters appear from nothing. The once peaceful world that was known was no more.
Everyone was told to pick a card, as a video game like system appeared before them. Each card having stars, this was the beginning of their adventure. The cards were special classes you could choose from, having abilities and gears. This was to help those weak humans survive their fights with the monsters brought throughout the world. With the help of the new system, the humans could level up and grow stronger than they could ever imagine.
Now here we are, this is your reality. Do your best to survive and show your worth to the remainder of human kind.
