[ In this world there are creatures that are the
" Failure's of God " . We call them "Reversions" these monsters are ranked by numbers.The number that we are wary of is 00. There are also beings that are called deities. Deities are not human nor a monster but they are not equal to god. The people who lives in this world can have a contract with the deities. People who have a contract with the deities are called " Eretia " . But what they dont know is that there is something higher than the deities and god. ]