Kabaneri of the Iron Fortress

Season 1

Episode 5: Inescapable Darkness

Ikoma helps the Bushi develop weapons to kill the Kabane and Ayame declares the Kabaneri are the bodyguards of the Kotetsujo. The train arrives at Yashiro Station which was attacked by Kabane who still remain within. The Aragane passengers rescue some human survivors, who talk of a black smoke before the attack.