Shirō returns home and reminisces about how Kiritsugu’s ideals and the Fuyuki City fire ten years ago inspired him to become a hero of justice. Meanwhile, at Kirei’s church, Caster visits a captive Saber, who is resisting magical torture. She is then confronted by Kuzuki, who learns that her last two attacks had been of her own free will and that she intends to use the church to obtain the Holy Grail’s vessel. After waking up from a dream about Archer, Rin goes to Kirei’s church with Archer and finds bloodstains. She concludes that Caster attacked Kirei but he somehow managed to survive. The two then confront Caster and Kuzuki, but when Rin tries to fight them, Archer suddenly defends them from her attacks. Citing Saber’s change in alliegance to Caster’s side, Archer pledges his allegiance to Caster, revealing that she is the ancient Greek princess Medea and allowing her to stab him with Rule Breaker, which removes Rin’s Command Seals.