Part of the Kerberos Saga, it is a sequel to Oshii's manga Kerberos Panzer Cop (for which Sugiura was in charge of managing the series' continuity) and a prequel to the 1991 film StrayDog: Kerberos Panzer Cops.
The work is part of the "Kerberos Saga", continuing Oshii's manga "Kerberos Panzer Cop" (maintained by Sugiura) and serving as a prelude to the 1991 film "StrayDog: Kerberos Panzer Cops".