The dead Russian doesn’t just have a wanted poster with a sketch of Kuroranke, but Wilk as well, as we learn the two worked together to kill the emperor. Ogata’s game of cat-and-mout with Vasily concludes when he makes the Russian shoot first—at the wrong thing.
Vasily saw signs of covered footprints leaving the unmoving cloaked figure, which led to an Uilta coffin in a tree. But it turns out the coffin was the decoy, and when Vasily shoots it, thats when Ogata, the cloaked figure after all, shoots Vasily through the face.
Ogata masked his breath by eating snow, but hours of that and sitting in the bitter cold take their toll, and he end up with a horrible fever. He starts to have delirious dreams of the past when he was still trying to recruit his ultra-pure of blood and heart half brother Yuusaku, the flag-bearer for their unit.
There’s a superstition in the army about the flag-bearer being a virgin as a form of protection from the bullets. Ogata never cared for that, but he can’t really complain when Asirpa and Shiraishi participate in an Uilta healing ceremony designed to draw out the “wicked thing” causing his fever—in his case, lingering memories of his failed attempts to corrupt Yuusaku.
During the ritual, Shiraishi meets with Asirpa outside, telling her it’s not safe for her in Russia, particularly when their guide killed the emperor. Kiroranke leaves the tent too and comes as clean as you’d expect, telling them his old name was Yulbars, and he and Wilk killed the emperor who forged a treaty that threatened all far-east minority peoples. Asirpa decides not to run away, hoping to find the gold “when the killing is done”.
Ogata’s dreams resolve in a revisiting of the episode 19, when we first learned of Ogata’s unfortunate family situation. When Ogata notes Yuusuke hasn’t killed a single Russian during his tour, he offers up a prisoner for him to execute, but Yuusuke refuses. The next time he marches into battle bearing the flag, Ogata shoots him in the head, ending the failed mission to bring him into the fold with Tsurumi and negating the superstition of the flag-bearer’s invincibility in the same shot.
Because ultimately, Ogata is right: surviving bullets on the battlefield has nothing to do with chastity, nobility of one’s blood or the purity of one’s heart or soul. Yuusuke may have been the most moral man on the battlefield, but that made him an easy target for any bullet, not just Ogata’s. When his blood spilled, it was just blood, like anyone else’s.
After an Uilta fortune-telling ritual involving reading the cracks in burnt reindeer shoulder blade (that apparently goes well), Asirpa joins Kiroranke and a recovered Ogata further north, but Shiraishi is poised to stay behind. They say their goodbyes, but when Shiraishi remembers Sugimoto urging him to keep Asirpa safe, he runs after them.
When we first saw the bone cracks indicating “someone approaching from behind”, I took it to mean Sugimoto’s group was closing on them and they’d eventually meet up. But here it’s revealed Shiraishi, was the person from behind foretold by the bone. Then, after they leave, more cracks appear on that same bone, turning the good sign into a bad one.