Aobouzu is a young male with a slender frame, fair skin, and long blue hair complemented by bushy blue eyebrows and light chin stubble. A single horn rises from his forehead above a typically closed third eye. He wears blue robes fastened with a purple sash-like obi and red cloth gauntlets detailed with silver metal plates covering the backs of his hands. While traveling, he often dons a wide, woven Sandogasa hat. He struggles with farewells, habitually slipping away quietly after visits without saying goodbye. His notably poor sense of direction frequently leaves him lost, requiring Yobuko's help to navigate. In the 2007 anime, he features in episode 17 and plays a significant role in a flashback during episode 85, where he calms a young Kitarō whose uncontrolled yōkai powers had devastated a village, forging a lasting bond that leads Kitarō to see him as an older brother and affectionately call him "Ao-niisan." He also appears in the film GeGeGe no Kitarō: Nippon Bakuretsu!! and briefly in the live-action film The Great Yōkai War. His primary supernatural ability involves his third eye; opening it generates highly realistic illusions capable of deceiving foes, such as tricking Nurarihyon into believing he had killed Kitarō when only Kitarō's foot was injured. He is also a proficient combatant, skillfully wielding a rokushakubō staff. His equipment includes this staff and talismans.