A World where Mythical God's blessed 30% Of Humanity with 3-20 Blessings (Powers) in order to fight Demon Beast,Bug Beast,Black Beast which is treat to Mankind.
Because of this Humanity has no choice but to hire and train these Blessed beings to be able to defend the country thuss The Knight Association is Founded.
The main purpose of this is to train and make stronger individuals to deal with much more powerful beast. A ranking system was formed being E is the Lowest and X as the Highest although Blessed beings are in a low rate now because 3 years ago almost all S and X rank Knight died leaving Only 20 S ranks and 9 X ranks.
Now Blessed beings are quite Rare cause almost the newborns with blessed being are just babies.
Well rare is much better than the whole destruction of earth as "The Hero" saved earth defeating the Demon Lord but suddenly 3 months after the victory he disappeared and the last one she talk to someone is a Beggar stating "I'll return once more.. once stronger foes have regain their streaght I shall be stronger in the future cause to me Killing beast is Killing time"
2 years after the the events a new Foe has appeared a talking beast invaded Kingdom of Nailee and declared war