Aragoneu Front The Aragoneu Front is a theater of the Crystal War in " " . It encompasses the northern half of Mindartia and contains the stronghold of the Yagudo Theomilitary . Because this area separates the Federation of Windurst from its allies and grants access to the weakest wall of the Grand Duchy of Jeuno , it is a key battleground for the Alliance of Altana . The front contains most of the modern - day Aragoneu region . Zones . Meriphataud Mountains . The Meriphataud Mountains are a dusty wasteland lying east of Fort Karugo - Narugo and north of Tahrongi Canyon , which is inaccessible during the war . The mountains are famous for the massive landmark , Drogaroga ' s Spine , that divides them in half . The Yagudo have constructed watchtowers all along Meriphataud in defense of their nearby capital , Castle Oztroja . A Cavernous Maw connects this area to itself twenty years in the future . It is also possible for properly attuned wayfarers to travel here by means of the Recall - Meriph spell . A division of Windurst ' s Mithra Mercenaries , the Cougar Volunteers , are permanently assigned to Meriphataud . Their leader , a Mithra monk named Mikhe Aryohcha , famously wears the head of the first Yagudo she defeated as a helmet . In turn , the Yagudo Theomilitary assigned Vaa Oozu the Redolent and the Divine Inciters to seize control of this area . Vaa Ouzo is able to summon mighty scorpions to to his aid . Sauromugue Champaign . Sauromugue Champaign is a large , windswept peninsula found north of the Meriphataud Mountains . As the northwestern corner of the continent , the Champaign is linked to Rolanberry Fields in Quon and the city - state of Jeuno by bridges . These connections make its routes vital for both Beastmen and Alliance forces attempting intercontinental coordination . As a result , Windurst and the Kingdom of San d ' Oria have each contributed to the fortification of the area . A network of underground tunnels known as Ghoyu ' s Reverie allow passage from Sauromugue to West Sarutabaruta . A Cavernous Maw also enables travel from this area to itself twenty years in the future . Windurst ' s Crocodile Mercenaries , led by Mithra ranger Vhino Delkahngo , are dedicated to operations on the Champaign . In turn , the Yagudo Theomilitary assigned the powerful wind mage Yaa Haqa the Pious and the Divine Liturgists to seize control of this area , using the power of black magic to destroy the opposition . Castle Oztroja . Castle Oztroja is a Yagudo fortress carved from the rock of the eastern Meriphataud Mountains . It is their greatest settlement and the seat of their ruler , Tzee Xicu the Manifest . It has ample facilities for the storage of prisoners in the event that the Yagudo decide to take hostages . Garlaige Citadel . Garlaige Citadel is an underground stronghold in the Sauromugue Champaign secretly reconstructed by the Royal Knights of San d ' Oria . Though the San d ' Orians had intended to launch a surprise attack from Garlaige , the Beastmen learned of its importance and found a hidden entrance through which to ambush the Alliance . The fortress was therefore transformed into another bloody battlefield . Master Caster Lutete , a Tarutaru white mage , leads Windurst ' s Ariesian Casters in defense of the citadel . Though she is often seen yawning and seemingly inattentive , the furious barrages unleashed by the Luminous Coalescences in her employ are a wonder to behold . In turn , the Yagudo Theomilitary assigned the spiritual monk Vee Seju the Consumed and the Divine Martyrs to seize control of this area .