Ao was distinguished by a harsh and demanding nature, which was tempered during the time of the Blood Mist. He was a true embodiment of the old guard of Kiri and believed that a man must be tough, decisive, and not show weakness. That is why he constantly scolded Chojuro for his indecisiveness and pessimism, although behind his grumbling he hid genuine concern for his partner. He had a keen sense of duty and was infinitely loyal to the Mizukage, serving as her right hand and bodyguard. Calmness and vigilance did not leave him even when surrounded by enemies, and his many years of experience as a hunter-ninja taught him to trust no one without verification. At the Kage Summit, it was Ao who first uncovered Danzo's manipulations, noticing the familiar chakra of Shisui Uchiha. He did not tolerate betrayal and intrigue, acting directly and assertively, but always staying within the bounds of subordination. Despite his outward severity, he knew how to be grateful and offered Chojuro a treat as a sign of luck before the war. He placed responsibility for the lives of allies above his own safety, which later manifested in his selfless work at headquarters. He was proud of his trophy — the Byakugan — but did not flaunt it, using it exclusively for the protection of the village. In dealing with superiors, he behaved respectfully but without servility, and was merciless toward enemies. Over the years, his character did not soften, and even at the Allied headquarters he maintained strict discipline.
