The Koutetsujou (The Iron Fortress) is a Hayajiro from Aragane Station. After crossing through Hayatani Station and stopping at Aragane Station, it was used to evacuate Aragane's survivors once the station was breached and overrun by Kabane. Out of the warriors in the Iron Fortress, Kibito is the most loyal and reliable man among the survivors

Kibito: he goes scouting a deserted village