The Kotetsujyo picks up survivors from Yatsushiro Station which has been destroyed by the Kabane. Among the survivors is Enoku, an old friend of Mumei's. He points out to Mumei how weak she'd become as he witnessed how close she's grown to the people of the Kotetsujyo. Rattled, Mumei chooses to throw herself into a reckless fight and finds herself in a dangerous situation.

The Shogunate closes off the path to Kongokaku because they are wary of Biba and the support he's managed to garner. Biba seeks an audience with the Lord of Iwado Station and kills him at the meeting once its granted. Biba and his Hunters' overthrow of the Shogunate has begun.

Biba's plan, Mumei's Nue transformation, and the influx of Kabane were all too much for Kongokaku to withstand. That is when Ikoma arrives. Having modified his body once again, Ikoma enters Kongokaku in order to rescue Mumei, despite the danger he will have to face.