The story takes place in Fuyuki City. It is a city surrounded by the sea and mountains. In this common city, a shadow encroaches. The main character had lost his parents in a fire when he was a child. He was adopted by a person who called himself a wizard. Disobeying his father-in-law, the main character has studied magic. However, because he lacked talent, he could obtain only one magic spell despite several years' training. One day, the main character is accidently involved in a fight between two opposing masters. As he is dying, a girl suddenly appears and saves him. He contracts with one of the seven servants, Saber. Willingly or not, he becomes a master, and plunges into a war over the Holy Grail...This anime is Based on a H-game by TYPE-MOON.