Hamura Ōtsutsuki

He was the son of princess Kaguya Ōtsutsuki‎‎ and the brother of Hagoromo Ōtsutsuki. Alongside his brother, he was one of the first humans to be born with chakra.

Background
Kaguya Ōtsutsuki gave birth to two sons, the first humans to be born with chakra. To repent for their mother's sins, Hagoromo and his brother fought and defeated the Ten-Tails, with Hagoromo becoming its jinchūriki.

Appearance
He was a long-haired man who wore a light, full-length haori with a high collar and dark pants. He had his sword in its sheath strapped to his left hip.

Abilities
Together with Hagoromo, he were able to defeat the Ten-Tails. In battle he carried a staff and a sword which he was presumably skilled at wielding.

Trivia

 * He may be the ancestor of what would become the Hyuga clan, since his brother did not seem to possess the Byakugan as their mother did.