Created by Tasuku Karasuma.

The former soldier Juzo Inui has a question: who turned him into a cyber guardian and erased his memories?

After the war, cyber soldiers known as Extended were discharged. Juzo Inui is one of them, a man whose body has been transformed, his head replaced by a huge weapon. Without memories of his previous life—or who replaced his head and why—Inui struggles to survive on the dark streets of the city as a Resolver, taking on cases involving the Extended.

As a Resolver, Juzo tackles issues related to the Extended. Recently, however, the source of most of Juzo's problems is… himself! His recent involvement with the megacorporation Berühren has put him on their target list, while a new Berühren agent named Pepper appears at his office along with her own Gun Slave Unit partner. Pepper is not there for business—she's looking to make Juzo her property!