[1] It introduces Tochiro Oyama, best friend to Matsumoto's classic hero, Captain Harlock, who is in turn depicted as a gunslinger in the Old West.

In sharp contrast to other Matsumoto's stories, Gun Frontier is a comedy adventure rather than a space opera.

Along with a mysterious woman they meet along the way, the two friends challenge sex rings, bandits, and corrupt sheriff.

Tochiro Oyama Franklin Harlock Jr. Sinunora Shizuku Darkmeister is the leader of the "organization" that guides the world.

He wants to use their superior knowledge of metalcraft (known as Stardust Steel) to create unparalleled weapons to use in war to overthrow the American government.