Ikoma is still alive, washed up on the shore and is found by Kurusu (who went missing in the previous attack). Biba injects Mumei with the same liquid that he used on Horobi to turn her into a Nue. The Kōtetsujō arrives at Kongokaku and announces that they have captured the men who destroyed Iwato Station so they are allowed entry. Ayame pretends to have Biba prisoner because her crew are being held hostage, and they are taken to meet the shōgun. Biba tricks the shōgun into holding a sword tainted with the Kabane virus which turns him into a Kabane. Biba then kills him and announces to everyone that Kabane are among them, which creates a panic and people start killing each other out of fear. The Karikatashu take the Kōtetsujō into the city and release the Kabane, while Ayame escapes with the help of her uncle. Kurusu has one of Biba's scientists prisoner with knowledge about the Kabane virus. He says that Mumei can be saved once she becomes a Nue by injecting white plasma into her heart. Ikoma insists on being injected by black plasma to give him additional strength, although it will accelerate the Kabane virus and shorten his life. Mumei begins her transformation into a Nue to fulfill Biba's dream of destruction.