Ys Memoire: The Oath in Felghana follows thrill-seeking protagonist Adol and his blue-haired companion Dogi as they return to Dogi’s homeland of Felghana. The eight years they’ve been away have not been kind to the lands which are now filled with roaming monsters, a newly active volcano, and a greedy new overlord extorting the suffering residents. While Dogi seeks help from his former master, Adol remains to help the locals, only to find himself embroiled in a world of conspiracies and ancient legacies.