Hakurai no Kishi白雷の騎士; The Knight of White Thunder

In the “quintessential fantasy of sword and sorcery, and of humans and beasts,“ a wise king named Carliga and a hero named Jack are enmeshed in a conflict over the Holy Sword, a relic of a great war. The sword will once again bring together the ambitions of two great nations, and a woman bandit named Zety will also become involved in the conflict. (Source: MangaDex)