Tsurumi’s new pet insane taxidermist Edogai has completed the fake skins for his master, and even found the time to create a Tsurumi “doll” with “spare parts”, much to the consternation of his two minders, Maeyama and Tsukishima.
Things shift from lighthearted fun with body parts to real danger when Ogata kills Maeyama while Tsukishima is away. Edogai makes use of one of his bearskins to disguise himself and escape, making for quite the spectacle. We know Edogai doesn’t get out much, which explains why he remains in the bear outfit throughout his escape.
As a result, it doesn’t take long for Ogata to spot and catch up to him, but Tsukishima is very good at his job (keeping Edogai safe despite himself) and snatches him up in a mine cart. Sugimoto and Shiraishi, who arrived to inspect Edogai’s house (and where Ogata met Shiraishi in the room of corpses and reminded him of his obligations to Hijikata), give chase in another mine cart.
They catch up, but become separated again when the tracks split. Ogata himself follows in a third card, but after some dynamite, the release of firedamp, and several gas explosions, the entire mine becomes even more of a deathtrap than when it was functioning normally. Edogai’s leg is crushed under rocks so he gives his humanskin bag to Tsukishima, entrusting him with getting the fake skins back to Tsurumi.
Sugimoto tries his damndest to break through the wooden barriers the miners made to stop the airflow, but lacks the strength. Fortunately, none other than Ushiyama spotted Sugimoto and Shiraishi heading into the mines via cart, and when things turn pear-shaped, he rushes in to save them both, to Asirpa’s relief.
With that, you have two of the three major factions of the show suddenly sharing a meal together, Last Supper-style: Hijikata and Sugimoto are officially introduced, Ogata is revealed as having betrayed Tsurumi (which doesn’t sit well with Sugimoto, who is, after all, a soldier himself), and Shiraishi’s secret of passing info to Hijikata is not exposed…for now.
As for Tsukishima, he makes sure Edogai didn’t die in vain. The skins reach Tsurumi, as well as Edogai’s last word: “iron.” Tsurumi learns that you can tell a fake skin by the tannins Edogai used, which make the skin turn black when wet and in contact with iron—an interesting parallel to the Huki leaves Asirpa and Sugimoto munched on last week.
Unfortunately for those two, Tsurumi is the only one who knows what’s fake and what’s real. He’s achieved his goal of making life far more difficult for anyone else seeking the treasure.