Returning to Japanese soil, Sugimoto and the men of the 7th Division are ambushed by a sniper.

Desperate to save Hijikata, Kadokura issues a challenge to Sekiya, the prisoner whose body is a canvas of ink. It is a game with fatal stakes.

The hunters of the Seventh encountered an unusual figure amidst the steaming waters of Noboribetsu. They pursued him there, drawn by a sense of something amiss.

At fourteen, Koito met Lieutenant Tsurumi unexpectedly. Years later, when he was sixteen, Koito was abducted by men who spoke Russian, and it was only Lieutenant Tsurumi who could bring him back.

Asirpa seeks a means to transmit the traditions of the Ainu people to those who will follow.

Sugimoto and Asirpa made ready for their encounter with the core members of the Seventh Division.

Asirpa encountered the Seventh Division, and the sight before her displeased her greatly.

Deep within the forests of Hokkaido, the crew encountered a peculiar figure. He claimed to be pursued by a bear, a statement delivered with a disconcerting conviction.

While the Seventh Division pursues a relentless killer through the streets of Sapporo, Shiraishi conceives of a novel method for locating the elusive gold.

Tanigaki pursued Inkarmat, who carried his child and was currently in the custody of the 7th Division.

The vessel carrying Sugimoto's company is suddenly beset by Botaro, the pirate.

In Sapporo, Usami and Kikuta pursue a peculiar serial killer, their investigation leading them down a path of unsettling discoveries. Meanwhile, Sugimoto is locked in a desperate struggle beneath the waves.

Usami and Kikuta persist in their pursuit of the killer, while Botaro endeavors to discern the nature of the connection between Asirpa and Sugimoto.