Fate/Zero

Fate/Zero (Japanese: フェイト/ゼロ Hepburn: Feito/Zero?) is a light novel by Gen Urobuchi, illustrated by Takashi Takeuchi, and is a prequel to Type-Moon's visual novel, Fate/stay night.

An anime adaptation has been produced by Ufotable, the first season of which aired from October 1 to December 24, 2011 and the second season of which aired from April 7 to June 23, 2012.

Episode 10 - "Rin's Adventure" (凛の冒険)
This episode focuses on Tokiomi's daughter, Rin, and her involvement in the Fuyuki City Kidnappings. Despite her young age, Rin is determined to follow in her father's footsteps as a great mage. With the Holy Grail War starting soon, Tokiomi sends Aoi and Rin away for their own safety. At Rin's new school, several children, including her best friend Kotone, have been kidnapped by the Fuyuki Serial Killer. Wishing to save Kotone, Rin heads to Fuyuki City alone. Using a mana detector gifted to her by her father, she eventually finds Uryū using a magic bracelet to hypnotize children. Rin follows Uryū to his hideout, where she is found by him. Rin overloads Uryū's bracelet with mana, destroying it, incapacitating him and freeing the children from his control. With everyone safe, Rin heads home only to be ambushed by one of Caster's monsters. However, Kariya comes to her rescue and later hands her to Aoi. Kirei, who had been spying on them through Assassin, orders him to continue monitoring Kariya.