Height: 165 cm
Weight: 53kg
She is an English teacher at Shiro's school, homeroom instructor of Shiro's class and the supervising teacher for the archery dojo. She is widely called "Tiger" (, Taiga), a nickname she dislikes ("Taiga" and "Tiger" sound similar in Japanese), though Shiro refers to her as "Fuji-nee" (older sister Fuji). After Kiritsugu died, Taiga became Shiro's guardian and has been living with him for several years. Taiga and Shiro are very close, and she regards him as a younger brother.
She's initially distrustful of Saber, believing that "some strange woman was trying to take Shiro from her" as she put it. She becomes exasperated whenever a new girl appears at Shiro's house, thinking he stashes girls at his house. Taiga always shows up for breakfast and dinner at Shiro's house to have some of Sakura's cooking, and always saves some scraps from breakfast for her lunch.