Koji Kashin

- Koji's full appearance. - Koji's appearance in Two Blue Vortex. 1/2 As a clone of Jiraiya, Koji's likeness is identical to the Sannin, albeit he is physically in his prime compared to his template, having no wrinkles and his hair is straight unlike Jiraiya's spiky hair. Koji is a tall man with shoulder-length white hair that he keeps the top of in a topknot, leaving the rest to flow freely. He also sports trimmed beard along his jawline and black markings on the corner of his eyes, extending downward and ending to his cheeks which resemble the Roman numeral "Ⅱ". He also has a small wart on left side of his nose. He also noticeably wears a mask which conceals the top-half of his face, which he later abandoned wearing after it was broken, along with the black hooded robe with maroon lining that seems standard of Kara. Beneath his robes, during his meetings with Kara and Ao, he wore a long maroon coat with a row of buttons on the right side; during the meeting with Kara it was left unbuttoned, but while meeting with Ao the buttons were fastened and he wore a belt over it. Later, when confronting Team Konohamaru, he donned a shorter maroon jacket with black lining and straps with buckles, as well as a brown tactical belt and armour on his upper right leg and a pouch on his left hip. Three years after Boruto left Konoha, Koji discarded his broken mask though he kept it in possession and wears red and black-zipped jacket and matching pants with a long-length cloak. He also lets his hair down.

Koji was created as an alternate plan against Isshiki after Amado's plan for using augmented cyborg Outers was shut down by Jigen. In the anime, Koji witnessed Kawaki being confronted by Garō and the young boy unconsciously activated his Kāma and blasted Garō. At some point later, Koji was present with Victor, observing the former Kirigakure shinobi Ao's rehabilitation.