Tengen Uzui

Tengen is a very tall, broad-shouldered, and muscular man with lightly-tanned skin and white hair. His hair is of an uneven length, the longest strands reaching his shoulders, and is styled with three more notable, shorter clumps arching up to fall as bangs between his eyes and on either side of his face. He has quite thin, maroon eyes that appear to slant inwards, each with one long eyelash flowing to the far side of his face. He is considered very attractive as noted by many women and even by Zenitsu; this has led him to use his looks as a tool for his missions whenever persuasion is necessary.

Suma is a young woman of short height and with shoulder-length black hair, short bangs, and blue eyes. Similar to the other wives of Tengen Uzui, she sports a shapely figure.

Suma wears a short, blue, sleeveless dress with a plunging neckline that exposes her cleavage, which is secured with a gray obi where she probably stores her kunai. She wears gray ankle-length tabi socks and white zōri with blue straps.

Makio is a young woman of average height possessing a voluptuous figure with pale skin and large golden brown eyes framed by eyelashes with prominent ones present on both the upper and lower lashes, and thin eyebrows arching downward which gives her a determined and headstrong look. She has black hair tied up with golden-brown bangs which hang loosely, framing her face.

Makio is seen wearing a red, sleeveless striped dress that ends mid-thigh which also reveals her cleavage and secured with a black obi where she stores her kunai. She has gray-colored bandages wrapped around her calves and up to her thighs. Her footwear consists of a pair of zōri with red straps. During her time as Daki's captive, she is seen with cuts and bruises across her body.

Hinatsuru is a young woman of average height possessing a curvaceous and slender figure with long black hair that she generally keeps tied back into a ponytail. She has big, almond-shaped violet eyes framed with thin eyelashes and eyebrows and a distinct beauty mark located beneath her left eye, giving her a gentle and kind appearance.

Hinatsuru wears a short, sleeveless lavender dress with an irregular square pattern of a darker color, which has a plunging neckline that exposes her cleavage, and secured tight with a red-violet colored obi where she presumably stores her kunai. She wears brown fishnet socks that reach up to her mid-thigh along with light colored sandals with purple straps. Tengen is an eccentric and flashy individual, always wanting to be "flamboyant", possessing a need for everything to be flashy and outstanding, even proclaiming that he is the god of flashiness and festivals. This is shown when he gets excited imagining how "flamboyant" it would be if Tanjiro Kamado's blood vessels exploded, and tries to forcefully haul Aoi Kanzaki off to the Entertainment District with him so she can unwillingly help him with a dangerous mission, even spanking her. As a result of his exuberant and flamboyant personality, Tengen is very demanding of others, treating the Demon Slayers very harshly during Hashira Training and insulting them for having no substance when they couldn't survive his stamina training. Furthermore, he also abhors the idea of unflashy things, as shown when the Hashira openly expresses his hate for plainness. He is usually seen talking boastfully, proclaiming that he is "god" in front of Tanjiro, Zenitsu and Inosuke, even calling them trash and declaring that if he tells them to become dogs, they must become dogs, and if he tells them to become monkeys, they must become monkeys. Tengen even demands for the trio to always humor and stoop down to him, imploring him for favours and always doing their best to flatter him.[10] This was also shown in his initial encounter with Upper Rank Six, Gyutaro, proclaiming that he was in tip-top shape despite being severely poisoned.[11]

However, Tengen does possess a caring side that is masked under his flamboyant façade, one he only shows to those that are extremely close to him, most notably his three wives, Makio, Suma, and Hinatsuru, who Tengen is shown to truly care for, praising and encouraging Makio and Suma after their undercover mission and assuring Hinatsuru that she has completed her mission and telling her to get out of harm's way. Furthermore, Tengen also declares that they must value their lives above all others as they are precious to him. This is especially shown when Gyutaro gags Hinatsuru with his hand, Tengen panics and furiously yells at the demon to leave his wife alone. After the events in Yoshiwara, Tengen also becomes more friendly towards Tanjiro, Zenitsu, and Inosuke. Although he can be very boastful and expressive, Tengen also shows a side of modesty and humility. He openly denied Gyutaro's statement that he was blessed with any talent, comparing himself to the other Hashira and especially Kyojuro Rengoku. This implicates a sort of inferiority complex, further proven by the fact that he told himself that he could never become someone as great as Kyojuro. Tengen is also shown to harbor regret over the fact that he has let so many lives slip through his fingers over the years. Kagaya Ubuyashiki praised Tengen for the hard path he chose and for facing forward and fought to protect human lives despite carrying all of his conflicts and contradictions he hides behind his loud and confident façade, which caused Tengen to deeply respect Kagaya from that moment on.

Despite being a shinobi that has traditionally valued completing the mission over all else, Tengen has rejected that ideology after seeing its effect on his family.[4] He believes that his subordinates, whether they be his wives or the Demon Slayers under his command, should value their lives, and the lives of innocents, over their missions or his own.[14][15] Tengen especially hated becoming like his brother or father who were apathetic towards human lives and wanted to desperately abandon what he was taught by them.

Following his retirement, Tengen was brought in by the active Hashira to assess fitness and stamina during Hashira Training. Tengen would prove to be a strict teacher, frequently yelling and berating the trainees for their weaknesses and exhaustion, whilst also amusing himself by intimidating them. Despite this, he does genuinely care for his pupils, as Makio mentioned that he did not eat until the last trainee returned, even going so far as to search the mountain to find them should they get lost. In addition, according to his wives, Tengen still has a desire to fight and that he calls out in his sleep, blaming himself for relinquishing his position in the Corps. Despite this, Tengen remained retired and dutifully served as a bodyguard to Nezuko and Kiriya Ubuyashiki alongside Shinjuro Rengoku, where he would go on to give his compliments to the son of his late mentor and friend Kagaya.