
Overview:
In early 1900s Hokkaido after the Russo-Japanese war, Saichi Sugimoto tirelessly pans for gold. Nicknamed "Sugimoto the Immortal" for his death-defying acts in battle, the ex-soldier seeks fortune in order to fulfill a promise made to his best friend before he was killed in action: to support his family, especially his widow who needs treatment overseas for her deteriorating eyesight. One day, a drunken companion tells Sugimoto the tale of a man who murdered a group of Ainu and stole a fortune in gold. Before his arrest by the police, he hid the gold somewhere in Hokkaido. The only clue to its location is the coded map he tattooed on the bodies of his cellmates in exchange for a share of the treasure, should they manage to escape and find it.
Sugimoto does not think much of the tale until he discovers the drunken man's corpse bearing the same tattoos described in the story. But before he can collect his thoughts, a grizzly bear—the cause of the man's demise—approaches Sugimoto, intent on finishing her meal. He is saved by a young Ainu girl named Asirpa, whose father happened to be one of the murdered Ainu. With Asirpa's hunting skills and Sugimoto's survival instincts, the pair agree to join forces and find the hidden treasure—one to get back what was rightfully her people's, and the other to fulfill his friend's dying wish.
[Written by MAL Rewrite]
Characters and Voice Actors

Asirpa
MainShiraishi, Haruka
Japanese

Shiraishi, Yoshitake
MainItou, Kentarou
Japanese

Sugimoto, Saichi
MainKobayashi, Chikahiro
Japanese

Edogai, Yasaku
Supporting-
Japanese

Gotou
SupportingAoyama, Yutaka
Japanese

Henmi, Kazuo
SupportingSeki, Toshihiko
Japanese

Hijikata, Toshizou
SupportingNakata, Jouji
Japanese

Huci
SupportingIchijou, Miyuki
Japanese

Ienaga, Kano
SupportingOhara, Sayaka
Japanese

Inkarmat
SupportingNoto, Mamiko
Japanese

Kasahara, Kanjirou
SupportingYamamoto, Kanehira
Japanese

Kiroranke
SupportingTerasoma, Masaki
Japanese

Komiya
SupportingWatanuki, Ryuunosuke
Japanese

Makanakkuru
SupportingOno, Atsushi
Japanese

Mishima
SupportingIshiya, Haruki
Japanese

Nagakura, Shinpachi
SupportingSugou, Takayuki
Japanese

Narration
SupportingTachiki, Fumihiko
Japanese

Nihei, Tetsuzou
SupportingOotsuka, Akio
Japanese

Nikaidou, Youhei
SupportingSugita, Tomokazu
Japanese

Nikaidou, Kouhei
SupportingSugita, Tomokazu
Japanese

Noppera-bou
Supporting-
Japanese

Ogata, Hyakunosuke
SupportingTsuda, Kenjirou
Japanese

Okada
SupportingKasama, Jun
Japanese

Osoma
SupportingAsai, Ayaka
Japanese

Shibukawa, Zenjirou
SupportingShingaki, Tarusuke
Japanese

Tamai
SupportingTezuka, Hiromichi
Japanese

Tanigaki, Genjirou
SupportingHosoya, Yoshimasa
Japanese

Thomas
SupportingUmezu, Hideyuki
Japanese

Toraji
SupportingTakumi, Yasuaki
Japanese

Tsukishima, Hajime
SupportingTakemoto, Eiji
Japanese

Tsurumi, Tokushirou
SupportingOotsuka, Houchuu
Japanese

Ushiyama, Tatsuma
SupportingNomura, Kenji
Japanese

Wada
SupportingInada, Tetsu
Japanese

Yamamoto
SupportingYanagita, Junichi
Japanese
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