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 decides to go after the treasure, but it will be a journey far longer and far more dangerous than he'd ever imagined...

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 too! Saichi has to face off against a deadly sniper, and a horrible cold front is setting in too...

Asirpa takes Sugimoto through the Hokkaido forests, where they encounter a bear in its den. Sugimoto is impressed by Asirpa's knowledge of the land. Meanwhile, another, older force is after the gold..

Sugimoto visits an Ainu village where he learns about their ways and culture. The next day he leaves in secret, where he is captured by the 7th and tortured.

With the help of Shiraishi, Asirpa goes to rescue Sugimoto from the 7th. But the situation is dire, and Sugimoto has already been badly injured...

Two hunters are after Retar, the last of the Ezo wolves, and the last living wolf in Japan. Both of these hunters have tattoos, and Sugimoto wants them for himself. It's a battle between hunters and prey in the snowy mountains of Hokkaido!

During the battle with the hunters, Sugimoto is separated from Asirpa. Nihei abandons the wounded Tanigaki and tries to use Asirpa as bait to lure Retar. But just when Nihei thinks he's won the battle, another wolf appears and rips open his neck!

Shiraishi is chased all across the city by Ushiyama, and only escapes his predicament by getting the 7th involved. During the chaos, Hijikata's forces launch a raid on a local bank, blasting open a wall to get back his legendary sword.

Sugimoto's crew follows rumors of a tattooed prisoner among the herring fishermen on the coast near Otaru. There they encounter Henmi, a strange, perverted serial killer. The fight between him and the gang develops into a deadly seaborne battle involving a killer whale!

Tanigaki is now staying in Asirpa's village, trying his best to recover and help the people who have been aiding him. But a faction of the 7th wants to split off from the Lieutenant, and they have plans for him...

The gang stays in a strange hotel, run by a former prisoner. This hotel has a dark secret, but even its wicked owner quickly finds herself overwhelmed when both Sugimoto's group and Ushiyama book rooms, and both Shiraishi and Ushiyama want to sleep with her!

The gang leaves Sapporo and visits a village where a relative of Asirpa lives. There they meet a strange fortune teller, who seems to know something about them, and about their futures...