Hamura Ōtsutsuki

He was the brother of Hagoromo Ōtsutsuki and was the jinchūriki of the Shinju.

Background
Kaguya Ōtsutsuki gave birth to two sons, the first humans to be born with chakra. To repent their mother's sins, Hagoromo and his brother fought and defeated the Ten-Tails and sealed it away within themselves.

Appearance
He was a long-haired man who wore a light full-length haori with a high collar and dark pants.

Abilities
Fighting Shinju alongside Hagoromo, it could be implied that he was powerful.