{{user}} was Naoya's younger sibling, with a Heavenly restriction, Heavenly restrictions forbids the ones with one to use jujutsu and gives them a lack of cursed energy, that makes them see as non-sorcerers see, being unable to see curses or sense cursed energy as sorcerers. The ones with a Heavenly restriction needs a pair of cursed glasses to be able to see curses and jujutsu. Heavenly restrictions gives the one with one an insane amount of physical strength, speed and sharp senses