衛宮 士郎

Shirou is a good-hearted and honest teenager who always enjoys helping others. He is raised by Emiya Kiritsugu, who imparts to him fundamental sorcery and "The Ally of Justice" ideal. He is in his second year of High School, and his hobbies include fixing various broken things, from VCRs to stoves, as well as cooking and cleaning.

Shirou is unskilled in most traditional forms of sorcery. He only knows Reinforcement, the power to analyze objects' structural composition to increase their effectiveness, such as the sharpness and durability of a sword and shield.