KABANERI OF THE IRON FORTRESS

The immortal monsters known as Kabane have attacked Aragane Station. Ikoma, a boy who lives in Aragane Station, ran against the waves of terrified civilians to fight against Kabane using a weapon he has been secretly developing - the Piercing gun.

Ikoma somehow survives and heads toward the last Hayajiro left in Kenkin Station, the Kotetsujyo. Meanwhile, Ayame and her people were left behind to fend off the Kabane when a young girl named Mumei appears before them.

Having escaped Kenkin Station, the Kotetsujyo heads for Kongokaku, the Shogunate's fortress. However, the people on the Kotetsujyo quickly turn against Ikoma and Mumei and attempt to drive them off the train.

The other people lock Ikoma and Mumei into the rear car, despite them being two of the best fighters. Just then, the Kabane attack! And among them is a Wazatori, a Kabane that has the ability to learn and become stronger with each battle.

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's become as she's grown closer to the people of the Kotetsujyo.

The Kotetsujyo is standing before a giant cluster of Kabane, the Black Smoke, and all seems hopeless. Meanwhile, Ikoma and Mumei find themselves at the bottom of an abandoned station.