Boro

Boro was a tall middle-aged man with a heavily-built and well-muscled frame. He had short spiky white hair on the very top of his head, a trimmed moustache, a beard stretching along his jawline to his temple, and violet eyes. He also sported a trio of thick-line tattoos running down his face; two under each eye and the third one between his eyes from the nose to his head. These tattoos appeared to form the Roman numeral "Ⅲ". He also had a disk embedded on both sides of his temples, one on each of his pectorals, two on both his forearms, two on his shoulder-blades, and two at his hips. His body was also apparently modified to be void of gender-based anatomy. Like other Inner members of Kara, he wore a dark hooded robe. Beneath his robes, he wore a black coat over a blue shirt with a row of buttons on the right side; he tended to leave the bottom buttons undone. He also wore black pants with blue shinobi sandals and armbands with metal plates on the forearms. In the anime, Boro wore a white robe with a high collar while working as the leader of his cult.

During the Fourth Shinobi World War, Boro was previously one of the many victims of the Infinite Tsukuyomi that was cast by Madara Uchiha under Black Zetsu's machination. However, Boro would openly revere the Ōtsutsuki as gods and the Infinite Tsukuyomi as their means of salvation. He would later join Kara to follow in Isshiki Ōtsutsuki’s plot and became an Inner with his body modified with Scientific Ninja Tools and the DNA of Shibai Ōtsutsuki, though he failed to awaken any shinjutsu. At some point, Boro established his own cult to follow his fanatical views. In the anime, he would secretly poison lands and then appear as the "Saviour", using his abilities to cleanse the lands and become revered by all around him, promising a world of bliss and salvation to those who joined his cult. He preached to his followers that the Ōtsutsuki Clan were benevolent gods and benevolent to humanity, whose guidance would grant them world peace through the Infinite Tsukuyomi. He also angrily lamented on how the Five Great Shinobi Countries had killed three of them and undid the Infinite Tsukuyomi, claiming they did to selfishly preserve their own status quo in the world. At some point, he was ordered by Jigen to destroy the powerful cyborgs Amado had created. However, Boro instead had Ada stored away after Boro became affected by her alluring power, alongside her brother, Daemon at his cult's base.