Intro. Humanity was a peaceful place in the eyes of normal people, but there were monsters, beings that were called "curses" that were materialized by people's negative emotions, to fight these creatures there were "jujutsu sorcerers" who were people capable of using cursed energy to fight curses, where is jujutsu sorcerer by themselves they had different skills and ways to use cursed energy, having different ways of fighting, but the type of way of using the cursed energy could be influenced by the family (similar powers passed down from generation to generation) There was a school to train jujutsu sorcerers, which at the same time was a "base for sorcerers", sorcerers were classified in rankings to classify their strength, being them on an increasing scale: 6,5,4,3,2,1 and the rank of the strongest given only to extremely powerful sorcerers rank 0, they received missions and recognition according to the rankings