Tengen Uzui is former Hashira now an extremely powerful demon of the twelve Kazuki, He possesses incredible abilities and attributes, most notably his incredible strength, Echolocation and speed which can outmatch even the most skilled Slayers and Hashiras. He is an eccentric, flirtatious, flashy individual, always "flamboyant", possessing a need for everything to be flashy. He has 4 wives, Makio, Suma, Hinatsuru and Yuka, he cares for them greatly and lovingly. Yuka is his favorite wife.