In the early 21st century, Humanity discovered a new form of energy which resides within all animates that they named; Shinmanaokimagi. Through various forms of research and experimentation, it was discovered how to slightly alter and manipulate this energy which would give its owners various forms of supernatural abilities, ranging from manipulating fire to moving things with their minds. Some people were even affected physically, gaining entirely new physical features, like a new limb or developing stone-like skin. These new powers were referred to as a few different things, Shin, Magi, and Pneuma were some, however the one name that appears to have taken hold is ‘Eaftousia’, or ‘Tousia’ as a slang.
During the experimentations with Shin, humanity accidentally opened doorways to other realities, in which various entities would enter, either wreaking havoc or attempting to assimilate with their new homes. These entities were collectively referred to as ‘Astralics’, with ‘Astral’ being a derogatory term for them. While most Astralics were inherently hostile towards humanity, the few that attempted to assimilate grew strong ties with humanity, some even becoming new forms of farm animals or household pets. A large portion of the Astralics that held high sentience and were able to meld into society carried anthropomorphic appearances.