Right in the middle of Shiki considering killing his Uncle Akio with neither Inugami nor Nobimaru not standing in his way, a filthy Akira emerges from the woods having pissed himself with fear. Then a whole mess of Akio’s kemono creations arrive, surrounding the area. Akio informs Shiki that while none of them can produce the golden webbing, they’re still smart and can even speak—in Kumi’s voice.
When the monsters start to rush everyone, Inugami steps in, but his arm is poisoned, keeping him from producing a gun. Hearing his mother’s voice tell him she loves him through all the monsters paralyzes Shiki. Kabane’s lights up as he draws close to Shiki and asks once more “How can I help?” Inugami has Akira freeze his arm, but they’re saved from the charging kemono by the little girl Aya, whom they listen to.
When we cut back to Kabane, he’s already demolished all of the dozens of kemono protecting Akio, leaving Shiki free to kill him, or otherwise ask Kabane to kill him. Kabane is simply “happy to help”, as there’s apparently zero psychological cost to the carnage he causes.
The thing is, Shiki no longer wants his uncle to die. He wants him to live with the torment of all the things he meant to leave behind erased, and dying many years from now a forgotten man with no legacy. Aya doesn’t want Akio killed either, and not for sentimental reasons: he knows the location of a certain cocoon.
A bitter Akio refuses to tell her, but fortunately for her Inugami & Co. are detectives. Aya has no leads, but with one call to Mihai, they get a location: the same secluded spring in a patch of skunk cabbage where Aya had Inugami heal his arm. Aya prepares to plunge in, but Shiki goes in her place; she’s just a little girl after all.
At the bottom of the spring, Shiki finds something he’d never expected: his mother, still alive, encased in the cocoon. A bodyguard kemono attacks him but he defeats it and surfaces with his mom. Aya reveals that she herself is the golden webbing, and created the cocoon to keep their mother alive.
When Akio tries to rant more about “nearing mass production”, Shiki knocks him out with a slug to the face. Aya and the still-unconscious Kumi pile in the car with Shiki, Inugami, Kabane and Akira and they head back to Tokyo. Kabane noticed Nobimaru slipped away at some point, but Nobi doubles back give Akio at taste of his kitsune flames.
With his mom alive and suddenly possessed of a little sister in Aya, Shiki’s had a considerable turnaround in his fortunes. But Kumi still won’t wake up, so Inugami takes her to a clinic in Tokyo run by a diminutive ohana-basan—who doesn’t seem to mind the after-hours visit when she learns it’s Inugami.
If Kumi woke up fully restored, she could presumably pick up where she left off before falling into Akio’s foul enterprising web. That could mean Shiki and Aya would go live with her, either in their hometown or Tokyo. If the latter, Shiki could still work at the agency and hang out with Kabane and Akira. But this is all academic. First Kumi must be revived.