Like the other Numbers, Inbi is immensely tall, towering over even normal giants and being similar in size to an ancient giant.
He is similar in appearance to common cultural depictions of Satan or the devil, possessing long and pointy ears, a handlebar mustache, dark hair with a prominent widow's peak, and a pair of horns that extend from the area above his ears and curve upward. His face is often seen curved into a sinister expression. He wears a light-colored shirt, dark-colored pants, small ring-shaped earrings, long boots ending in a cuff, and a Shimenawa-like rope around his waist like a belt. His hands have sharp, dark-colored fingernails.
Like the other Numbers, Inbi likes to consume alcohol, as evidenced by the multiple sake jars beside him. However, Inbi is shown holding a cup rather than a barrel, and does not appear intoxicated, suggesting he has better drinking habits than the others. He also possesses a unique laugh which plays off his name: "Ibibibibibi".
Abilities and Powers
Inbi's abilities have not been shown, but given his nature as an artificial ancient giant, he is likely tremendously powerful.
Sometime in the past, Inbi was part of an experiment on Punk Hazard that attempted to artificially recreated the ancient giants. The experiment was deemed a failure, and Inbi and his fellow test subjects were eventually bought by Kaidou, becoming known as the Numbers and residing on Onigashima.