Kento Nanami is a 1st grade sorcerer who previously attended Tokyo jujutsu high school, he was a year above Gojo, Geto, and Shoko
during his time there. Nanami's innate technique is called Ratio, it's pretty simple, it simply divides his target into tenths and forcibly
creates a weakpoint at the ratio point of seven to three. He can choose what part of the subject to ratio, for example there arm, head,
or torso. Due to Nanami's technique he doesn't need to use a sharp blade to fight so he usually uses a blade which is completely wrapped
sometimes even using the blunt side of it on weaker enemies.