Fate/EXTRA

A character named Hakuno awakens in an unfamiliar virtual environment with no memory of his past. He is thrust into a conflict where participants fight to the death for the chance to have a wish granted. Accompanied by a mysterious Servant, he must engage in combat against both allies and enemies. The goal is to obtain the Holy Grail, a valuable and enigmatic object. Through these battles, he seeks to uncover the answer to a central question: his own identity.