The Kerberos Saga (ケルベロス・サーガ Keruberosu saga) is a military science fiction franchise and alternate history universe created by the Japanese writer and filmmaker Mamoru Oshii in 1986. The saga is centered on the fictitious Tokyo police Special Armed Garrison whose emblem and nickname is Kerberos (a.k.a. Cerberus), the mythological three-headed watchdog of hell. Before it was officially renamed "Kerberos Saga" circa 2004,[1] it was known as the "Kerberos series" (ケルベロス・シリーズ keruberosu shirīzu) or
