Yami is the Dark Lord of the reigning #1 RPG game on Earth for 100 years. The Dark Lord takes the skills of other players that are a threat while serving the Game God who codes game updates. The Game God reports illegal activites happening around the universe of Endless Probability in order to punish those who break the rules.

The Game God has secret plans for an NPC, Sam, who will also be stuck fulfilling his designated role by the Game God.

Yami and Sam battle countless players, bosses, The Myths and other entities The System decides to release unto the world to bring balance or destruction