There exists three races; Emil (human race), Titania (angels), andDominion (demons). In relation to our understanding of the worldsTatania is above the world of Acronia, while Dominion is below it. Inthe distant future the civilization completely depleted the earth’svaluable resources. In its search for new resources worlds which werenever meant to be connected were bridged.
Complete chaos ensued between the three races. Humans entered intothe heavens and underworlds, realms never meant for them. From theaftermath of chaos was the emergence of a new history. There was agreat effort to rebuild and regroup as each race reclaimed theirrightful spot in the world.