An old friend and classmate of Kyohei who always defended him. He is found on the streets by Eiji, a Yakuza member. He takes Akio in and has a doctor convert him into a Cyberoid. He goes on a one man war against the Yakuza. Eiji agrees to a deal with the right-hand man of the Yakuza boss to kill Akio. Eiji fails and ends up being shot several times by an enraged Akio due his betrayal. He tells Kyohei what happened to him and how he became a Cyberoid. After killing off the Yakuza and the Boss, Akio battles Eiji now being converted to a Cyberoid. Akio kills Eiji though he dies in the process leaving Kyohei crying at the loss of his friend.

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