本片改编自TYPE-MOON出品的文字冒险类游戏《Fate/stay night》,是该游戏最终路线“HF线”动画剧场版全三部作品中的第二章。通过女主角间桐樱的视角,讲述了御主和英灵为了得到可以实现一切愿望的圣杯而相互厮杀的一场战争。 时隔10年在冬木市爆发的这场“圣杯战争”中,因被称为“圣杯战争”御三家之一的间桐家的当家·间桐脏砚的参战而变得更畸形、扭曲和恶化。作为御主参战的卫宫士郎也在战斗中负伤还失去了英灵Saber,尽管如此士郎为了守护间桐樱,并没有从战斗中引身退出。而担心士郎身体的樱,自己也无法逃离魔法师的宿命……The story focuses on the Holy Grail War and explores the relationship between Shirou Emiya and Sakura Matou, two teenagers participating in this conflict. The story continues immediately from Fate/stay night: Heaven's Feel I. presage flower, following Shirou as he continues to participate in the Holy Grail War even after being eliminated as a master.