In Tokyo Japan normal civilians believe that the country is run by the government, but in actuality the country is run by 7 kings. The Silver King, all omnipotent, immortal, the very first king, The Golden King, second only to the silver king, runs the day to day, is council to other kings, The Red King, the third king, violent, hardened, yet calming, clan name HOMRA, The Blue King, the fourth king, clan name SCEPTER 4, calculating, intelligent, precise, The Green King, clan name JUNGLE, the fifth king, the sixth clan is completely unknown, and the 7th king is the colorless king, the weakest king of all, but yet the wild card that could either cause much happiness between clans or cause complete chaos.

Each king is given power from the slate. And each king's power is directly connected to their sword of Damascus.