The Mythical Hero's Otherworld Chronicles: Volume 9 by Tatematsuri

Beaten and scarred by brutal conflict, the land of Faerzen has languished for two years under the yoke of Six Kingdoms. Now, the Grantzian Empire plots its liberation. Fresh from her victory in Steissen, Liz regroups with Aura and Scáthach to lead the march west, while Surtr joins the war effort to pursue goals of his own. Old scars will reopen and old scores will be settled as the curtain rises on the final battle for this war-torn nation. And as Scáthach stands on the brink of restoring her homeland, she must ask herself: what is she prepared to lose?