Husband to Rin Tohsaka. His original family name was Emiya, but he took on the Tohsaka family name as a condition of marrying Rin. He was a Master during the Fifth Grail War and is one of the few survivors. It is said that Shirou was the final Master and victor of the Fifth Grail War, and that he played an integral role in the dismantlement of the ritual. He is currently a teacher at Homurahara Gakuen and he assists Rin with charity work as needed. He is the father of their daughter, Emi Tohsaka.