in the Juppongatana (Fuji), Iwanbō was created as a "full body costume." Although Watsuki admitted he might have included too many elements from the Kyoto arc in the Jinchū arc, he said he enjoyed the character of Iwanbō. Because he had to hide that it was just a costume, the author portrayed Version One as a very mysterious character, but the design kept changing and he became a "weird, but likable personality." Version Two was not intended to appear, but because Gein broke Version One, Watsuki had to "cut and paste" and later utilized this in the story. Version Three had to fight Kenshin and therefore was made into a "powerful suit." After all this, the author reflected that he seems to have gotten carried away, making Iwanbō feel out of place in the Rurouni Kenshin universe. The design models for Version One (and Two) were the characters Blob and Mojo from X-Men. But elements of Victor and Sasquatch from Vampire Hunter were also incorporated, making him "cuter." The design model for Version Three was the comic book character Hulk, specifically the version that was on Marvel X, a small booklet included in an issue of Wizard in relation to Age of Apocalypse. Version Three's full-body tattoo was added to give him the look of a "battling tribe" from an undeveloped world, but Watsuki said it does not look that good. Saizuchi , also known as , is a member of the Juppongatana and a cunning elder who manipulates the giant Fuji. Saizuchi's talents lie not in battle-abilities, but his proficient use of words. Having taken Fuji in after he was nearly killed, Saizuchi reminds Fuji that he has to repay him. During the Juppongatana's attack of Aoi-Ya, Saizuchi attempts to destroy the morale of the Oniwabanshū by giving a speech as to why it is impossible for them to defeat Fuji and himself. Saizuchi is knocked unconscious when Fuji's left arm falls on him upon being defeated by Hiko Seijūrō. Pardoned for his crimes, Saizuchi uses his gifts of persuasion for the Foreign Ministry in secret negotiations. The overall model for Saizuchi is a villainous elf who tricks the giant in what Watsuki was told is a Finnish folktale called "Frost Giant"; he combined that with an "image of a giant-robot pilot." Originally Watsuki planned for Okina to fight Saizuchi, but he cut the concept because he wanted to