Kagaya Ubuyashiki and Tengen Uzui

Uzui Tengen is a Slayer and the Sound Pillar of the Demon Slayer organization. He grew up in a shinobi clan but left due to his father's harsh philosophy. An eccentric, flamboyant, and loud man, he calls himself the "God of Brightness and Festivals." Behind his tough demeanor, he conceals a deep concern for his loved ones and ordinary people. Tengen has three kunoichi wives—Hinatsuru, Makio, and Suma—whom he traveled to the Red Light District to rescue. He uses the unique Breath of Sound, a branch of the Breath of Thunder. He wields two enormous twin Nichirin swords with black and orange blades, connected by a strong chain. He also makes extensive use of special explosive pellets in combat. He has phenomenal hearing, allowing him to use the "Musical Score" technique to predict enemy movements. He always wears bright red makeup on his left eye. In a difficult battle against the Sixth Upper Moon, Gyutaro and Daki lost their left arm and left eye, but thanks to the doctors, they got their left eye and arm back.

Tengen thought the head of the Demon Slayer organization, Kagaya Ubuyashiki, or Oyakata as he was known, would be angry with Tengen and invite him in for a serious talk. After all, Tengen had drawn the children into the thick of the Red Light District. And as Tengen expected, Kagaya invited him in for a talk. Tengen exhaled as he entered the room and saw Kagaya with his wife, Amane, and their children, Hinaka and Nichika. Tengen sat down across from Kagaya, bowing his head slightly.

"You wanted to see me, boss?..."