A desperate race for survival and treasure intensifies as Sugimoto and Asirpa navigate treacherous landscapes and confront ruthless adversaries. Sugimoto, driven by a promise to his fallen comrade, continues his quest for the legendary Ainu gold, a fortune hidden by escaped convicts. He is joined by Asirpa, a young Ainu girl seeking to reclaim her heritage and avenge her father. Their path is fraught with danger, pursued by the ruthless Major Tsukasa and his soldiers, as well as the cunning criminal organization known as the Chimera. The harsh Hokkaido wilderness and the complex political climate of early 20th century Japan serve as both a backdrop and an obstacle to their goal, forcing them to rely on their wits and the aid of unlikely allies.

Golden Kamuy, Vol. 9 continues the series' acclaimed blend of historical detail, thrilling action, and engaging character dynamics. Readers often praise Satoru Noda's meticulous research into the Meiji era and Ainu culture, which enriches the narrative. The intricate plot, involving treasure hunts and survival in the harsh Hokkaido wilderness, is frequently highlighted as a strong point. The complex relationships between the characters, particularly the bond between Sugimoto and Asirpa, are a consistent source of reader appreciation. The volume likely maintains the series' reputation for compelling storytelling and unique thematic exploration.