Sugimoto Saichi, called "Immortal Saichi" for his incredible powers of survival, is panning for gold in the far north when he hears a story about buried treasure, hidden by a death row inmate. He deci…

Saichi and Asirpa head to Otaru, the largest town in the area, in seach of the tattooed prisoners. They quickly find out that they're not the only ones after the treasure. The army is looking for it t…

Sugimoto and Asirpa are pursued by soldiers from the 7th Division. Private Genjirō Tanigaki finds Asirpa, but is fought off by Retar. Sugimoto evades capture after diving into a bear cave, whose occup…

Sugimoto leaves the village and returns to Otaru alone, where he learns of the incident with Ushiyama. He is captured by Tsurumi, who accuses him of killing the soldiers. Asirpa and Retar track Sugimo…

Sugimoto is tortured by twin brothers Youhei and Kouhei Nikaidō. Shiraishi breaks into Sugimoto's cell and releases his bonds, allowing him to kill Youhei. He fakes a fatal injury using Youhei's intes…

Nihei tells Tanigaki that he wishes to hunt Retar, the last Hokkaido wolf. Asirpa and Sugimoto are joined by Shiraishi, who tells Asirpa and Sugimoto that Nihei is a tattooed prisoner. Asirpa, Sugimot…

Sugimoto and Shiraishi fight Nihei, while Tanigaki captures Asirpa. Tanigaki is shot by a poisoned arrow after stepping in a deer trap, but is saved by Asirpa. Retar rushes to Asirpa's aid with his ma…

Caught by Ushiyama, Shiraishi is pressured by Hijikata into acting as his mole in Sugimoto’s group. Sugimoto, Asirpa, and Shiraishi hear rumors of Henmi Kazuo, a tattooed prisoner who is also a psycho…

Hemni and Sugimoto are confronted by 7th Division soldiers. As they flee, Hemni attempts to kill Sugimoto, and they engage in a violent struggle before Sugimoto fatally stabs him. An orca beaches and …

Tanigaki, a Matagi, escapes his pursuers by using his skills in hunting and trapping. Tsurumi arrives, and forces Nikaidō to expose the traitors in the 7th after cutting off Nikaidō’s ear, though Ogat…

The group and Ushiyama separately check into a hotel run by Ienaga Kano, a tattooed prisoner who murders and eats her guests. Shiraishi and Ushiyama are held in a basement torture chamber while Ienaga…

Shiraishi meets Ushiyama and Ienaga, who survived the explosion, but does not disclose this to Sugimoto. Sugimoto’s group encounter Inkarmat, a traveling Ainu fortune teller who Asirpa does not trust.…

While searching for the body of a tattooed prisoner stolen from his grave, Tsurumi encounters Edogai Yasaku, a taxidermist who creates clothing from human skin. Tsurumi wins Edogai's affections by pra…

Sugimoto and Shiraishi track Hajime Tsukishima, a sergeant in the 7th, back to Edogai's workshop, and find it under attack by Ogata. Edogai flees into a mine, where he is caught in a series of explosi…

The collected groups search Edogai's workshop for a way to identify the fake tattoos, but are attacked by the 7th. The groups split up, with plans to reunite in Ashibetsu. Elsewhere, Tanigaki and Inka…

Shiraishi is captured by the 7th, though Hijikata and Kiroranke attempt and fail to rescue him. Tsurumi meets his old friend Lt. General Arisaka, a weapon designer who gives Nikaidō a false leg that c…

The disguised Suzukawa attempts to bribe the 7th for Shiraishi's freedom, but he is killed Second Lt. Koito Otonoshi, who foils the plot on Tsurumi's behalf. Sugimoto flees with Asirpa, Ogata, and Shi…

Tanigaki receives a telegram informing him that Huci is near death. He reflects on his friendship with Kenkichi, a fellow Matagi who married and later murdered Tanigaki's sister; he vowed revenge, and…

Tanigaki informs Asirpa of Huci's failing health, though Asirpa wishes to continue the search for the gold. They are joined by Nihei's dog Ryu, who has followed the scent of his former master's gun, n…

A locust swarm separates Asirpa and Inkarmat from the group, where Asirpa questions Inkarmat about her father. Inkarmat says that Asirpa's father is Wilk, a Polish-Ainu man with blue eyes who was kill…

At a village near Lake Kussharo, Sugimoto's group learn about a group of blind bandits led by a man with strange tattoos. Shiraishi identifies him as Toni Anji, an Abashiri prisoner. The group is atta…

Sugimoto's and Hijikata's groups secretly tunnel into Abashiri Prison and link up with Chief Kadokura, an associate of Hijikata's. On a moonless night, they launch the escape plan: Inkarmat, Cikapasi,…

Under the guise of quelling a prison riot, Tsurumi leads an assault on Abashiri Prison. Tsurumi corners Sugimoto in Nopperabo's cell, but Kadokura releases the master prison lock to save himself, free…

The blue-eyed man confirms he is Wilk after seeing Asirpa's makiri[b], but says he will only reveal the location of the gold to Asirpa. Wilk tells Sugimoto that he wished to raise Asirpa to be the gue…

Saichi Sugimoto and his group arrive in Karafuto to search for Asirpa and Kiroranke. They meet a Karafuto Ainu girl and with her help reach a Russian village, where Kiroranke's group has been seen lat…

Saichi Sugimoto and his group have to enter a match of stenka and face one of Abashiri Convicts, a violence-loving man named Maiharu Gansoku.

After Sugimoto's rampage during Stenka, Tsukishima threatens to kill him if it happens again. Regretful of his own past, Tsukishima reminisces of the time he lost control of himself and how it changed…

Sugimoto's Group arrives in Toyohara, where they have to chase after a thief. The thief turns out to be a boy from a famous touring circus troupe. Sugimoto comes up with an idea that will help him rea…

Kiroranke, Asirpa, Hyakunosuke Ogata, and Yoshitake Shiraishi make contact with Orok people in order to cross the Russian border. Yet they don't know that there's someone already waiting for them at t…

The sniper duel is finished, and, although victorious, Ogata is sick and needs immediate help. A strange apparition appears in front of him, reminding of something terrible from his past.

Sugimoto, Tanigaki, Cikapasi, and Ryu get lost in a blizzard. Meanwhile, Kiroranke is taking Asirpa to see an old friend of her father's.

Hijikata's Group is looking for information about a mysterious item they found in the hidden room in Abashiri Prison. The clues lead them to a legendary assassin, Youichirou the Manslayer.

Kiroranke's Group is getting ready to free Sofia from Akou Prison. Kiroranke tells Asirpa a story of the man who taught him, Sofia, and Wilk Japanese language.

Kiroranke's Group breaks out Sofia and her accomplices out of Akou Prison. After meeting Asirpa, Sofia shares her memories of Wilk with his daughter, who in her own stead remembers something very impo…

As Asirpa remembers something important about her father, Ogata takes her away from the others and tries to get her to tell him the secret to the code. Unbeknownst to them, Sugimoto is following close…

Asirpa reaches Kiroranke to witness his final moments and tell him that she has remembered something important. The group leaves Ako, but before going back to Hokkaido they need to find a doctor take …

As Sugimoto and the members of the 7th Division head back into Japanese territory, they're attacked by a sniper.

Kadokura challenges Sekiya, one of the tattooed prisoners, to a deadly game in order to save the life of Hijikata.

The members of the 7th hunt a strange man at the Noboribetsu hot springs.

When Koito was fourteen years old, he had a chance encounter with Lieutenant Tsurumi. When he was sixteen years old, he was kidnapped by men who spoke Russian, and only Lieutenant Tsurumi could save h…

Asirpa looks for a way to pass down Ainu culture to later generations.

Sugimoto and Asirpa prepare to meet the main unit of the 7th Division.

Asirpa comes face to face with the 7th Division, and doesn't like what she sees.

The crew meets a very unusual character in the Hokkaido woods, who says he's being stalked by a bear.

Shiraishi comes up with a new way to find the gold while the 7th Division goes after a serial killer in Sapporo.

Tanigaki goes after Inkarmat, who is pregnant with his child and being held by the 7th Division.

The steamship that Sugimoto's party is riding on is attacked by Botaro the pirate.

Usami and Kikuta search out a bizarre serial killer in Sapporo while Sugimoto fights a desperate underwater battle.

Usami and Kikuta remain on the hunt for the killer as Botaro tries to unravel the mystery of Asirpa and Sugimoto's relationship.

The different groups collide in Sapporo as a Jack the Ripper copycat is on the loose.

The chaotic battle at the Sapporo Beer factory begins.

Botaro has his own ideas about what to do with the gold.

Asirpa is captured by Lt. Tsurumi, and learns the truth about the gold.

Asirpa learns of her father's dark past.

The final attempt to crack the code begins.

Years ago, Sugimoto was recruited for a certain operation in Tokyo...

The location of the gold is finally revealed.

The final search for the gold begins at Goryoukaku as the 7th Division closes in.

Lt. Tsurumi's assault on Goryoukaku begins in full force.

Tsurumi's forces make their way inside Goryoukaku, and Asirpa must decide to stay or flee.