I think the mad taxidermist exited stage right at just the right time; before his antics grew repetitive and boring. His legacy is briefly carried on by the Nikaidou brother who lost an ear to Sugimoto, and is part of the contingent that attacks the house to destroy evidence of how to identify the fake skins.
In the ensuing fracas, Sugimoto ends up saving Ogata’s life, while Nikaidou ends up losing an ankle and a foot to Hijikata’s blade. The cat watches the house burn, and its meow either signifies “good riddance to bad rubbish” or “feed me.”
The newly-formed Hijitaka alliance splits in two, ultimately to rendezvous at Ashibetsu. Both parties have a camp dinner, with Asirpa trying to get everyone to like woodcock brains and Hijitaka and Nagakura reminiscing on when the latter discovered the former was in prison, when both were younger men.
One man who can tell fake skin from real is Nopperabo, and so Hijitaka plans to utilize Shiraishi’s Escape King skills to break in and meet with him. Only two problems: Shiraishi is worried about getting killed by Sugimoto for discovering he’s been passing intel to Hijitaka, and when he tries to peace out, he’s surrounded by troops.
Golden Kamuy is staying fresh and nimble by serving up new character dynamics as a result of the shifting alliances, but draw quite a bit of value from the resulting banter. Asirpa and Sugimoto aren’t featured as prominently this season, but that’s not really an issue as the show has such a deep and strong bench.