Kinshiki Ōtsutsuki

Kinshiki towers past two metres, a burly figure with pale skin, big hands, and a full beard framing short, spiky blue grey hair. A single long horn once rose above his left eye until Sasuke Uchiha sheared it off. He dresses in a pale blue high collared shirt with black cuffs, layered under a darker garment and cinched with a grey sash, finishing with grey trousers and black shoes turned up at the toes.

Kinshiki lives in complete devotion to Momoshiki, addressing his foster son with deference and never wavering, not even when the time comes to give up his own body. He is coldly single minded, sparing no thought for anyone else, and nursed a vengeful grudge against Sasuke for taking his horn. His enormous power bred in him a proud, lofty bearing, and he holds fast to his clan's grim custom of growing stronger through sacrifice, having once devoured his own guardian's chakra before offering himself to Momoshiki in turn.

Kinshiki counts among the most fearsome of the Ōtsutsuki, strong enough to pin down a perfect jinchūriki, trade blows with several Kage at once, and fight Sasuke to a draw. He can swallow any ninjutsu and reforge its chakra into glowing red weapons that he wields with ease, fly, and sense chakra keenly enough to track Kaguya's scattered fragments across nations. His Byakugan grants him piercing, near all around sight, and his sheer strength let him fell a God Tree with one swing even as death took him.

Hunting the remnants of Kaguya's chakra, Kinshiki and Momoshiki first cross paths with Sasuke in another dimension, where their duel ends in stalemate despite Sasuke lopping off one of Kinshiki's horns. The pair then reach Earth, run down and defeat Killer B, and storm the Chūnin Exams in Konohagakure, wrecking the arena and seizing Naruto when he lets himself be caught to shield his son and the others. They carry Naruto to a distant dimension to draw out Kurama, but Sasuke, Boruto, and the four Kage arrive to stop them. Kinshiki holds off the Kage, breaks free of their bindings, and looses a devastating blast that gravely wounds himself, whereupon Momoshiki converts his loyal guardian into a chakra pill and consumes him for a surge of power.