|“||Byakugan Princess. Do not let the world my elder brother created come to an end.||„|
|~ Hamura to his descendant Hinata to prevent Toneri of destroying earth|
Hamura was a tall and pale-skinned man with hairless brow ridges and white hair, which was short in his adolescence but later grew to waist-length. His bangs were short hung to left side of his face with a chin-length lock which hung from the right side of his face. He also had small, horn-like protrusions on his forehead and inherited the renowned Byakugan in both of his eyes from his mother. He wore a light, full-length kimono with a pattern of six black magatama around a high collar and dark pants. He had his sword in its sheath strapped to his left hip. He also had a dark crescent-moon representing Yin mark in his left palm.
In his old age, his appearance was very frail, his ribcage was slightly visible, his brows became more prominent, and he had deep wrinkles in his face and his once white hair had turned grey. He wore a white kimono with a black wide collar ceremonial kimono, with a light green sash tied over his right shoulder.
Hamura was a man who believed in peace and freedom opting to seal away his own mother, ending her reign of terror. Also, he was very dutiful, as he remained on the moon to guard Kaguya's sealed body. In the anime, despite rebelling against his mother, Hamura still loved Kaguya, understanding that all the amoral things Kaguya did was to protect in her own way all that loved and cared for. As such, Hamura chose to stay close to Kaguya's seal. Hamura had a great deal of loyalty towards Hagoromo, wishing to protect the world his brother created, even for a thousand years after his own death. In his adolescence, Hamura was shown to be somewhat more reckless and impatient, quickly voicing his opinion and using his authority to keep the peace. He also tends to use "ore", a more boastful and prideful way of referring to oneself, when referring to himself whereas Hagoromo used the more humble "watashi", a more formal way of referring to oneself.