Sugimoto's not trying to be a hero, he's trying to survive, and that difference rewires every fight, every alliance, every moral choice the show throws at him. The gold rush setting gives the story teeth that time-period anime usually fumble; this feels like a historical document that happens to have incredible action, not an action show dressed up in old clothes. You're watching a man who's already seen everything get slowly broken by the wilderness and greed around him, piece by piece, and the show never flinches when he loses.
Sugimoto survived the Russo-Japanese War, but peacetime has left him with nothing. Stranded in Hokkaido's frozen wilderness, he discovers a fragmentary map pointing to a fortune in Ainu gold, and suddenly his empty future has direction. The problem: he's not the only one hunting it. Criminals, deserters, and worse converge on the same prize, each willing to shed blood to claim it first. Sugimoto can't navigate this alone. He partners with Asirpa, a young Ainu girl whose father's death ties directly to the gold's secrets. Together they trek deeper into the frozen north, where the landscape itself is as lethal as any rival. What starts as a treasure hunt becomes something messier: a collision of survival, loyalty, and the question of who deserves what's hidden in the earth. It's part adventure, part heist, part dark comedy. Brutal fights erupt between moments of genuine tenderness, and the tone swings wildly because that's what frontier life actually is.