Meikai Uchiha

is an S-ranked shinobi hailing from Konohagakure prior to his defection. Yūkai is infamous for the powers of his Sharingan, his intelligence, his keen eye and his status of being a blood-member of Konohagakure's Uchiha, Senju and Kaguya Clan. He serves as the Commander-General of Amegakure's ANBU forces.

Appearance
Yūkai is a tall, fair-skinned and fit man with spiky, black hair that had a slight, blue tint to it. In his younger days, his hair was shoulder-length and he wore the standard Uchiha clan outfit: a high collared black shirt with the clan's crest on its back, which Yūkai tended to leave slightly open, and blue pants with bandages around his shins. Around his waist, he had a sash that held a sack, presumably containing his ninja tools. During later years, his hair grew out more and his sash was replaced by a belt, adorned with pouches and various weapons. He also wore another sash strapped across his shoulders which he used to hold his numerous swords.

By adulthood, his hair had grown to waist-length with shoulder-length bangs framing the sides of his face, covering his right eye entirely. Although still relatively young, more prominent creases had developed under each of his eyes. In most cases, his attire took the form of the standard shinobi dress of his era, consisting of bright red traditional armour — similar to that of samurai — worn over a simple black suit. This armour was constructed from numerous metal plates, formed into multiple protective guards along his body, in particular: chest, waist, shoulders and thighs. Unusually, his chest plate left his back entirely exposed, presumably so as to better display his clan's crest. This clothing was accompanied by boots and gloves, as well as his village's forehead protector which he would later abandon. During battle, he often carried an orange-coloured war fan on his back that had a mitsudomoe pattern, coloured bright red, in both of the top corners.

In his ANBU attire, Yūkai is seen wearing a mask made of strong materials in order to keep his identity a secret. The mask is white with a purple tint that covers the entire upper-half of Yūkai's head with a design that resembled the Ten-Tails' eye, consisting of a ripple-pattern with three tomoe around the centre; two of these tomoe acted as the mask's eye-holes. He wears a pair of black pants and gloves, with a white, presumed form-fitting shirt underneath. Over this he wears a purple, high-collared, long sleeve mantle that splits down the lower half and has the Uchiha crest on the back. Around his waist he wears a simple, light-purple obi and a belt. Strapped to his back, he carried a purple gunbai with black trimmings and black tomoe, connected to a black chain that ran up his right sleeve.

Personality
Yūkai is seen most of the time as a cold hearted, bloodthirsty, power hungry and ambitious man. He will do away with just about anybody who gets in the way of what he desires. Although Yūkai is generally shown like this, he does show some amount of sympathy towards people and how miserable this world is and would be better off in an endless loop. While Yūkai is shown to be cold hearted and in general cruel, he has, however, been shown to be smiling at least once in awhile. Usually smiling in solitude while mourning over his deceased younger sister. Different from the usual scowl that is most commonly shown plastered on his face.

Trivia

 * Yūkai is Japanese for "Hades" (湯快)
 * Yūkai's favorite phrase is "At the Break of Dawn" (夜明けの破断, Yoake no Haden)
 * According to the Naruto databook:
 * Yūkai's hobbies is Falconry and Experimenting.
 * Yūkai wishes to fight Zenaku Mibu, the Jinchūrikis, and the upper ninja of Konoha.
 * Yūkai's favorite food is Yakiniku and Dim Sum while his least favorite is Daifuku and anything sweet.