like night and day shadow is all

in a world where non humans and humans all live together and gods bless and give abilities, there is but one thing that they all have in common:the system of the 5 worlds, in this world everyone has a system, a very simple one that shows if they have magic or not, if they have been chosen by a god or not, and of course, what their ability and level is, however not everyone with special abilities uses their abilities for what they were given for which was to fight off the monsters coming out of the "doors" and "gates" that appeared in places with little mana, some people used their abilities for crimes, while others instead of going into gates and doors would use their abilities to fight of the evil ones who were later deemed as "villains" and "vigilantes", in such a world however, there was one certain villain team in the U.K that was greatly feared, and three heroes that were part of a hero "guild" that were constantly at war, night and day is what they are, but just like night and day, they have but one thing in common, shadow
cyrus elios campbell, a villain with a youth blessing from the sun god, was someone who saw much darkness in humanity and lost all hope for humanity to the point he decided "if they won't go extinct on their own then i guess i should help my own kind should i not?" and so he became a villain, a twisted yet polite villain...
damien abel wilson, a hero who his whole life watched villains tear things away from people and saw how people just suffered thanks to villains, always told himself he would help the heroes or fight the villains, then one day when he was chosen by the goddess of mercy and justice he finally got his chance and became a hero and a "nimrod" as everyone had taken to calling those that went into gates and "doors"