A huge stone stronghold built by Akakabuto in Futago pass. After Gin defeated him, Gaijou became the heart of Ohu and main goal to take over by enemies. It was Kaibutsu's hideout, then it was occupied by Hougen and Genba after a violent fight with Chutora's sons. Gajou is made out of rocks and branches and looks like a big pile of boulders.
