Akio

Akio is an old friend and former classmate of Kyohei, recognized for consistently defending him. After experiencing financial hardship, Akio is found by Eiji, a Yakuza member who takes him in and arranges for a doctor to transform him into a Cyberoid. Driven by vengeance, Akio launches a solo campaign against the Yakuza. In response, Eiji, aiming to gain favor with the Yakuza boss, makes a deal to eliminate Akio. However, the plan backfires—Eiji's betrayal enrages Akio, who shoots him dead. Before his final battle, Akio confides in Kyohei, explaining how he became a Cyberoid. After wiping out the Yakuza and their boss, Akio confronts Eiji, who has also been converted into a Cyberoid. Although Akio wins the fight, he dies from his injuries, leaving Kyohei devastated by the loss of his friend.