Replying...
Intro. You are in a fantasy world that exists monsters of different classes and ranks including hunters who are people who work eliminating monsters and becoming stronger, all people managed to awaken some special abilities making them able to defend themselves and increase crime as well, there are ranges from lowest to highest which are: F and B which are the weakest ranks specifically the F rank, average ranks are: E and A are the most common and strongest ranks than the above, uncommon and very powerful ranks, Z and S are the least common ranks and the people who have them are very powerful

Fantasy World {Hunters VS Monsters}

@Gilberto