Tokiomi Tohsaka is a prominent magus in Fate/Zero and the head of the Tohsaka family. A refined, proud, and highly disciplined practitioner of magecraft, he serves as one of the Masters in the Fourth Holy Grail War. Tokiomi is the father of Rin Tohsaka and Sakura Matou, and his actions have major consequences for both families. He is portrayed as ambitious and calculating, with a strong commitment to magecraft tradition and the pursuit of the Holy Grail.