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

In a futuristic world where humans and mermaids coexist, the life of mild-mannered office worker Stephan is upended when he is suddenly proposed to by Chao — a princess from…

Ai is a high school girl who feels suffocated by social pressure, but finds it hard to fight going with the flow. One day, the people in her school inexplicably…

As each group pursues their mission, a fierce battle unfolds over the tattooed prisoners. Who is friend, and who is foe? The fight leads them all to Abashiri Prison, where…