Retired soldier Saichi Sugimoto and Ainu girl Asirpa seek the hidden Ainu gold while hunting escaped convicts with tattooed maps leading to its location.

On the Hokkaido frontier, a war veteran and Ainu girl race against misfits and military renegades to find treasure mapped out on tattooed outlaws.

Ai has had a crush forever on her classmate Tatoe. When she finds out that Tatoe is in a secret relationship with another girl, she sets out to sabotage their plans for the future.