Darui is a jounin from Kumogakure who serves as the Fourth Raikage's right-hand man and commands the First Division of the Allied Shinobi Forces. He's best known for his laid-back personality—the kind of guy who'll just use the door instead of dramatically throwing himself through a window like his boss does. Despite the mellow vibe, he's genuinely devoted to the Raikage and won't hesitate to jump into a fight if needed. He's got a habit of calling everything "dull," which fans often note is a running gag tied to his name, and he apologizes constantly—sometimes for stuff that isn't even his fault.
Physically, Darui is fairly tall with dark skin, white shaggy hair covering one side of his face, and a perpetually tired-looking expression. He wears the standard Kumogakure jounin outfit and carries a distinctive broad, cleaver-like sword on his back that folds in half for transport. The tattoos on his shoulders—Water on the right, Lightning on the left—mark his elemental affinities and his inheritance of the Third Raikage's Black Lightning technique.
He's a genuinely skilled fighter. His swordsmanship is sharp enough that he disarmed both Ginkaku and Kinkaku in combat and overwhelmed Suigetsu with ease. What really sets him apart, though, is his mastery of Lightning and Water Release. He's the only known user of Black Lightning besides the Third Raikage himself, and he can combine his two elemental types to create devastating attacks. He's also one of the few users of Storm Release, a kekkei genkai that fuses lightning and water into guided beams of destructive light. His chakra reserves are impressive enough that he used three of the Sage of the Six Paths' legendary tools and still had energy left to fight.
Content compiled by AnimeList.moe from publicly available sources.