Tengen Uzui is the Sound Hashira of the Demon Slayer Corps in Demon Slayer: Kimetsu no Yaiba, a former shinobi who grew up in a clan where his father's harsh training and orders to kill family members destroyed most of his siblings. Appalled by his last surviving brother's acceptance of this, he left the clan with his wives, Makio, Suma and Hinatsuru, rather than fight. Kagaya Ubuyashiki brought him into the Corps, and he is 23 years old and stands 198 cm tall.

He is known for his loud, boastful, theatrical persona and for the Entertainment District arc in Yoshiwara, where he searches for his missing wives and fights the Upper Rank Six demons Gyutaro and Daki alongside Tanjiro, Zenitsu and Inosuke. He fights with Sound Breathing, including the signature First Form: Roar. His priorities are protecting his wives and innocent lives above any mission, and he later retired from the Corps and returned to