Ultimate Card System

In the year 2025 the world has reverted to its former shape and size, animals mutated, rift and dungeons appeared out of no-where and most cities have been destroyed in the process. The population has been reduced by half until some humans awakened their potential and levelled the playing field. A year passed and new technologies has been discovered studying artifacts and through that they learned how to process monster cores with the help of neo-crystals that can be mined in dungeons and humanity was able to produce powerful armaments that changed the human economy for the better. The story is about a man trying to live his rock bottom life and survive the harsh and cruel world but it all turned upside down when he discovered an artifact that gave him a system. The cover photo is not mine and was copied from https://www.deviantart.com/secretes/gallery