Tohsaka Rin

Current head of the distinguished Tohsaka family, and one of the main heroines of Fate/stay night. As a Master, she spent just as much time quarreling with Shirou as she did cooperating with him.
Her manner of speech is often hostile and dismissive of other people, but deep down she has a caring, big-sisterly disposition.
Her tendency of making trivial mistakes at the worst possible moment is a hereditary curse.
Though she really is a lot nicer than she seems, in the end she always makes her decisions based on cold, rational logic. In her own words, it’s “not a very cute personality.”
There are even times when she thinks she might lack any sort of “girlishness” at all, and it’s starting to become something of a complex for her.
In fact, her choice in personal clothes is probably an overreaction to that. Still, showing that much leg… a pure and wholesome boy won’t know where to look. Please, try to bear with it, Shirou.
Her hobbies are admiring jewels and bullying Shirou. She’s a mischievous girl at heart, so she loves teasing serious people. Please, try to bear with it, Shirou.
As far as magecraft goes, she specializes in the flow and conversion of magical energy.
Since it’s not a magecraft trait well-suited for combat, she stores away magical energy in jewels ahead of time, and uses them as disposable, limited-function mystic codes.
Aside from that, she also practices pseudo-karate as a form of self-defense.
Her instructor in martial arts is Kotomine. That fake priest was responsible for the sequence of moves she used to corner Caster.
By the way, she had the most screen time out of every character in Fate/stay night.

Fate/side material: Fate Encyclopedia

Tohsaka Tokiomi’s eldest daughter. The younger form of one of the heroines from the original story.
During Fate/Zero, Rin’s level of understanding of the “Holy Grail War” is about the same as Shirou’s was during Fate/stay night. That is, while it might seem like she knows what’s going on, she really doesn’t.
In the young Rin’s eyes, her father Tokiomi was a great magus deserving of love and respect. She did not yet understand the ruthlessness and cruelty that stemmed from that ideal. If her father had survived long enough for her to comprehend that aspect of him, it surely would have had a grave effect on her own personality. But whether she chose to rebel against that inhumanity and turn her back on sorcery itself, or chose to embrace it fully, becoming a perfect, cold-hearted magus like her father—the only certainty is that for her, happiness would be nothing more than the fleeting dream of a far off parallel world.

Fate/Zero material: Fate/Zero Encylopedia

Head of the Tohsaka Family, an esteemed magus family. She is forced to spend a lot of money when she returns to Ahnenerbe for the second time. She isn’t tsundere, she just doesn’t like you!

HibiChika Complete Capture Book: Mahou Tsukai no Hako Small Encylopedia

Tohsaka Rin.
She is a Master who participates in the Holy Grail War.
She is a spiritron hacker who raises a voice of opposition against Harwey’s rule.
Her nationality is unknown, and she is currently active in the Middle East. She has a firm and unsentimental set of values, but her true nature is someone who looks out for others and pursues justice, so she is suspect to be sympathetic at the critical moment.
Red clothes, twin tails, and a miniskirt. She is a well-known heroine from Fate/stay night.
Previously she was a member of a United Nations organization, and was volunteering as a system management engineer of sorts for an NGO that provides medical assistance across Asia.
But Rin found herself losing faith in her dream and had many doubts about what the future would hold in a world ruled by the Harwey family. After visiting a broad range of countries that were suffering from poverty Rin could see the limits of such a strictly controlled society, and so she decided to fight back against Harwey.
After that she left the NGO and devoted herself to supporting the resistance.
From then on she fought alongside the resistance, however she operated completely independently. Her policy is to avoid civilian casualties.
For the past year she has resided in the strife-filled land of the Middle East. Half for her own conviction, and half for the sake of money, she engaged in cyber warfare against Harwey’s private army. Upon hearing about the Holy Grail War from the resistance, she formally accepted the mission to ascend to the Moon and defeat Harwey.
Her servant is Lancer.
Her specs as a magus are slightly inferior to Leo’s, but her ability as a Master exceeds Leo’s, which comes from her greater real-world combat experience. This makes Rin a top candidate for winning the Grail.

Rin also appears in CCC as a trustworthy advisor.
When you fall to the far side of the Moon at the end of the fifth round, you bump into Rin, whose consciousness has been taken over by BB, and she becomes your enemy.
After defeating Rin, she regains her sanity, and joins the student council as if to atone for her sins. From then on she acts as an Operator.
Rin’s room is filled with random stuff to the point where you might think she is a Red Doraemon. Rin comes up with most of the strategic plans for you each night.
Her position within the student council is vice-president. She is a great strategist, and supports your efforts to clear the Sakura Labyrinth.
She also deeps her relationship with Rani who similarly plays a support role, and in the latter half of the game Rin and Rani become good friends.

Fate/EXTRA Material: Encyclopedia of Fate/EXTRA

Pretty girl that somehow came out by accident in the end, No. 1.
In the original work Fate, she was supposed to be a great justice heroine who was a perfect superhuman and the school’s idol with the tsun and the dere and showed to be actively competent in all fields, but oh how did she become like this.
Since in Priya the protagonist is an elementary school student, her side as an old sister or a protector is emphasized no matter what. Even if there are scenes in which she feels older or more mature, I would want you to think that is an expression due to it depending on a bias by the viewpoint of an elementary school student.

PRISMA material/petit: Encyclopedia of Prisma Illya MOVIE