Since the Great Holy Grail was sealed, the Holy Grail War has also disappeared. However, as the Einzbern family used the third method without authorization, the Great Holy Grail was shattered and scattered everywhere. Since then, various sub-Holy Grail wars have sprung up around the world, whether three people, five people, or seven people. People without any restraint are fighting for the Holy Grail fragments that can realize some wishes. The whole world has fallen into a cruel battle called the Holy Grail War...