Mohji is the first mate of Buggy's Crew, known for his pompous and sometimes silly demeanor. He claims to have the ability to control any animal he wishes, though this has only been demonstrated with his pet lion, Richie, who is more like another crew member than just a pet. Mohji often relies on Richie in battle rather than fighting himself. Despite this, Mohji is fast and agile, and highly skilled with a whip. He is also responsible for burning down places, such as a pet-food shop and the Going Merry.
In his first appearance, Mohji was tasked by Buggy to capture Roronoa Zoro but was thwarted by Monkey D. Luffy, who defeated him after Mohji burned down a pet-food shop owned by a recently deceased man and his surviving dog.
After Buggy's defeat, Mohji and Cabaji fought over leadership of the group. They were evenly matched and fought for several hours until Richie, sleepwalking, knocked them both unconscious and took over leadership. However, Richie and the pirates were later kidnapped by a cannibalistic group but were saved by Buggy, Alvida, Mohji, and Cabaji.
Mohji later participated in the attack on Loguetown, where his task was to burn down the Straw Hat's boat. This failed due to sudden rain. Nami and Usopp found Mohji and Richie, but when Mohji sent Richie to attack, Usopp distracted the lion with an egg. The Marines arrived and started shooting, but Mohji managed to dodge the bullets and escape with the rest of Buggy's group.
Much later, Mohji reappeared with the group as they traveled through the Grand Line and encountered Portgas D. Ace. He also appeared in a TV special featuring One Piece characters as ninjas and in several video games. Interestingly, every time Mohji appears in the series for an arc, his hairstyle changes. During the Buggy arc, his hair resembled a teddy bear; in the Loguetown arc, he wore a pink helmet with bunny ears; and in the Grand Line arc, his hair looked like a lion's mane.
