Ikoma and Kurusu enter Kongokaku in an effort to rescue Mumei from becoming a Nue. Meanwhile, the humans must stop attacking each other and help leave in the Kotetsujo. Ikoma, Kurusu and Mumei end up in a final battle with Biba.
Tropes in this episode:
- Bookends: The series begins and ends with the hayajiro moving towards different locations.
- Character Death: Biba dies at the hands of Mumei.
- Final Boss: Biba is the last enemy Ikoma encounters.
- Grand Finale: Of Kabaneri of the Iron Fortress.
- Impaled with Extreme Prejudice: Mumei stabs her brother to death with a spear.
