Saichi "The Immortal" Sugimoto learns about a hidden wealth of gold stolen from the Ainu, and the only way to find it is to decode the tattoos of a group of prisoners, made by the man who had stolen the gold. Sugimoto intends to pursue this rumor with the help of Asirpa, a wise Ainu girl whose father was slain and pilfered from.

Aired on: 4/8/2018