Arc 13The Greater Grail War
Shirou and his allies fought the Red faction, claimed the Greater Grail, and uncovered Amakusa Shirou’s plan to save humanity. After forming a pact with the Black faction, they faced Caster’s giant Adam Kamon, whose regeneration threatened the surrounding land.
- King Arthur recognized Mordred as his daughter, but Mordred refused the throne and later rebelled against Artoria to preserve her father’s legacy.
- Mordred awoke in Kaijiri Shishigami’s workshop, recognized Shirou as her father, and agreed to protect Aika as his ally.
- Shirou and Jeanne confronted Semiramis, while Shirou defeated Atalanta in an archery contest and learned the Red faction’s Masters were hidden.
- Shirou rescued Mordred from Vlad III, defeated him with Unlimited Blade Works, and watched Darnic force Vlad to become Dracula.
- Shirou, Mordred, and Jeanne escaped Spartacus’s destruction using Avalon, then Shirou seized the Greater Grail as Amakusa Shirou revealed his identity and goal of saving humanity.
- Fiore became head of the Black faction, and Shirou formed a non-aggression pact with her while discovering Caster had defected and was creating Adam Kamon.
- Shirou, Mordred, Chiron, and Astolfo attacked Adam Kamon, and Mordred shattered its head, but Jeanne explained that its barrier was regenerating it by transforming the land.
- Shirou asked Jeanne to use Divine Judgment to replenish his mana and command him to destroy Adam Kamon.