Five years ago, Kiritsugu tells Shirō about how he once wished to become a hero of justice. Shirō promises him that he will fulfill that dream for him, after which Kiritsugu passes away in satisfaction. In the present day, Shirō goes to school alone, despite Saber's insistence that she accompany him. At school, he learns from Issei that Mitsuzuri had gone missing the previous day and that she was last seen arguing with Shinji, who is currently absent, with no one able to contact him. As school ends for the day, Shirō is confronted by Rin, who attacks him despite his protests. After a brief chase, Rin eventually corners him and tries threatening him into handing over his remaining Command Seals, but before she could carry out her threat, they hear a scream. Shirō investigates and finds an unconscious student who had most of her mana absorbed. As Rin treats the student, Shirō is wounded after shielding her from an incoming attack by an unknown female Servant. He then pursues the Servant into the nearby woods, where he is restrained and nearly killed by her, only to be saved by Rin, whose appearance prompts the Servant to flee. Rin treats Shirō's wounds and decides to call off their fight, taking him to her house to evaluate the situation. Then, the two agree to have a truce and track down the Servant and her Master together. The following night, Rin learns of Shirō's magical training, which she is outraged by, as Kiritsugu didn't adhere to the tradition of magecraft by prioritizing himself as a father rather than a mage.