Shiraishi rather carelessly falling into the custody of the 7th Division is one more detour on the increasingly complex road to meeting Nopperabo. Hijikata cannot act when so outnumbered by armed soldiers, but he can lie in wait at a fragile hanging bridge that causes them to bottleneck.
Hijikata cuts the bridge, sending the soldiers and Shiraishi into the river, and Kiroranke is waiting to pick him up in a boat. But Shiraishi remembers his nightmare of being killed by Sugimoto for his betrayal, and hesitates to grab Kiro’s arm, and ends up right back in his captors’.
After imagining his annoying self in their heads, everyone kind of shrugs at the prospect of losing him, but decide that his know-how is worth traveling to the 7th Division base, infiltrating it, and rescuing him.
Meanwhile, we learn a little more about how Tsurumi intends to carry out his grand plan: Lt. General Arisaka’s top-quality weapons will sell like hotcakes; those weapons will be used to kill and maim in war after war; opium from Tsurumi’s cold-weather poppies will supply the drugs to sooth those who survive the battles. But he needs capital for his venture, hence the need to find the Ainu gold.
Tsurumi also had Arisaka built Nikaidou a new leg, all but assuring one more rematch between him and Sugimoto, who himself finally puts two and two together and realizes that Shiraishi was feeding info to Hijikata. Asirpa urges him not to kill anyone unless necessary, implying Shiraishi isn’t that.
On the contrary, he’s crucial enough to their plan for Hijikata to reach out to a fellow inmate at Abashiri, Suzukawa, who is a master of disguise. They’ll have him impersonate Abashiri’s warden Inudou Shirosuke in order to infiltrate the 7th’s base. Sugimoto accompanies him, also in disguise.
There’s now a lot going on, with the Hijikata/Sugimoto alliance (more like a truce) just barely covering up the fact that there are nearly as many competing motives as there are characters. The crowded field also means Asirpa gets another short shrift, with only one line that I recall. Sidelineing my favorite part of the first season—Sugimoto and Asirpa’s blooming friendship—had better bear some compelling fruit.