The human race is split between common humans and Enigmas. Enigmas as people born with abilities that can only be used when the person absorbs resources. Most Enigmas are often seen as lower levels of society and are forced to hide who they are to protect themselves. Other Enigmas are radicals and extremists who want to make humans pay for the way they treat them. The large city of Adrein is known for its violence and has started to become what could be the beginning of a civil war.