Rin is really a product university student and idol of Shirou's school. She barely talks to other students in her school and exhibits a want to be still left alone as exemplified by her tendency to remain on The college's rooftop, from the remainder of the students. She is secretly a Magus plus a Grasp inside the Fifth Holy Grail War. To start with of the anime, she summons Archer for her Servant, While she initially needed to summon Saber. Rin is reared because the successor to her spouse and children's magecraft, instructed by her father Tokiomi Toosaka to prioritize sorcery over her very own pursuits.
Two generations in the past, the Toosaka Residence, in collaboration With all the estates of Makiri and Einzbern, helped observed the Fuyuki Holy Grail Wars. The land of Fuyuki City, which possessed the second finest spiritual power in all Japan, was owned by Rin's ancestor, Nagato Toosaka; within the behest with the Einzberns, he furnished his residence as battleground for present and potential wars. Nagato was a kirishitan, as well as a pupil of Zelretch; these titles gave him sizeable impact in both of those the Mage's Association and also the Church, permitting the Toosaka spouse and children to get involved in the Holy Grail Wars, absolutely free from harassment by possibly Business.
Rin was introduced up because the successor to her spouse and children's magecraft, and was instructed by her father to prioritize magecraft above her own passions. Ten decades ago, Tokiomi Toosaka was selected like a Grasp while in the 4th Holy Grail War, and Rin was entrusted to take care of the Toosaka estate right until his return. Her mom, Aoi Toosaka, was remaining inside a debilitated state through the war, so her care was left to her guardian, Kirei Kotomine. Right after her father was killed, Rin continued to improve her sorcery with a few guidance from Kirei Kotomine. To divert interest from her private lifestyle, Rin has diligently strived to make the admiration of her friends, even though she's secretly stingy, rin tohsaka tomboyish, plus a slacker.
The rights to the Toosaka lands were being inherited by Aoi just after Tokiomi's Demise, and subsequently inherited by Rin right after Aoi's death. Kirei managed them as Rin's guardian, and since of his foolhardy and coarse management, nearly all profitable Houses wound up while in the hands of Some others. It is possible that he thought the wealth was lousy for her upbringing resulting from following the ideas of humility and poverty.
Although Rin resents the sacrifices she has endured to the sake of tradition, she is fiercely competitive and wanting to verify herself as a talented and able magus. She was immensely upset at summoning Archer and wound up in a quarrel with him; nonetheless, the duo shortly reconciled, set aside their variances and immediately obtained alongside.