Kōtetsujō no Kabaneri / Kabaneri of the iron fortress: Fang of Ruin

SINOPSIS

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.