Starting from the world of Demon Slayer, he inherited the art of Thunder Breathing. In One Piece, he fused the three types of Haki into a style of his own—Colorless Haki. In Naruto, he awakened the Lightning Eye, shaking the entire Shinobi world. He battled Curses in Jujutsu Kaisen, stood against Hollows in Bleach, and…