At the end of the Holy Grail War, Illyasviel von Einzbern, who had his heart ripped out by the hero King Gilgamesh to seize the Holy Grail, was thrown into a peaceful parallel world by the power of the Holy Grail that erupted from his body at the moment of his death. Her consciousness covered "Illya", who was engaged in the first magical girl battle in this world, and in the midst of severe pain, the proof of the Little Holy Grail in her previous life - the Command Seals all over her body suddenly appeared. Under the shocked gazes of Tohsaka Rin, Luvia Serenita Edelfeldt, and the other chosen girl Miyu Emiya, Illya used blood as a guide to create a summoning formation that should never exist in this world - the berserker from the Heroic Sea was summoned! When the mythical hero slayed the shadows and acquired the first class card (Rider), the gears of fate were completely derailed. Carrying the fate of two worlds, Illya has the dual identity of a magical girl and a container of the Holy Grail, and her journey begins!
