Set in the late Meiji period in Hokkaido, Japan, Saichi Sugimoto (Kento Yamazaki) is a war hero who was known as Immortal Sugimoto during the Russo-Japanese War. He now starts a new life in Hokkaido. To raise money for his plan, he pans for gold in Hokkaido. He hears about the existence of gold nuggets that belonged to the indigenous Ainu people, but were stolen by a man known as Noppera-bo. Right before he was caught, Noppera-bo allegedly hid the gold nuggets. In prison, Noppera-bo tattooed the secret location among the bodies of 24 different prisoners. Each prisoner had a piece that would collectively reveal the location of the gold nuggets. Noppera-bo then escaped prison with those 24 prisoners.
