Recaps

Shirou returned to Fuyuki, rescued Sakura from Zouken, and built a home with the Matou siblings and Taiga. When the Fourth Holy Grail War chose him as a Master, he summoned Lady Avalon and agreed to her conditions.

• Shirou escaped the welfare institute, met Shinji Matou, and moved into the Matou residence after Shinji invited him.
• Shirou disrupted Zouken’s attempt to modify Sakura with Incubus Worms, defeated him, and imprisoned his mind in a Little Yellow Duck as Magic Terminal Makiri.
• Shirou told Kariya Matou that Zouken had been exorcised, then later decided to leave the Matou home and helped Satō Kunihiro by confronting Fujimura Raika.
• Shirou defeated Taiga Fujimura in the dojo, earned a place in the abandoned estate, and renovated it into the Amamiya Residence with help from the Matous and the Fujimura Group.
• Shirou became friends with Kiyoko Sesshoin online, while Taiga moved in as his guardian and the Matou siblings joined his new household.
• Shirou received a Command Spell and prepared for the Fourth Holy Grail War by fortifying his residence, setting crows to watch Fuyuki, and obtaining a fragment of the Round Table.
• Shirou summoned a silver-haired Extra-class Servant who identified herself as Lady Avalon, Merlin’s younger sister from Paradise.
• Shirou accepted Lady Avalon’s terms of covert support and spiritualization, while requiring her not to interfere when spiritualized.

Shirou built an alliance with Hundred-Faced Hassan while investigating the other Masters, then intervened when Caster’s sacrificial ritual endangered children and Irisviel. Caster’s Grimoire unleashed a giant Sea Monster, and Shirou, Saber, and Lancer prepared to fight it before Lancer turned on Irisviel.

• Shirou used a modified Command Spell to transform into his adult body at the cost of his life, then killed Ryunosuke Uryu and revived him as a Living dead for an experiment.
• Shirou persuaded Hundred-Faced Hassan and Loli Hassan to cooperate with him, and learned that Kirei and Tokiomi were allied and Gilgamesh was their powerful Archer.
• Shirou encountered Irisviel in Shinto, later watched Saber fight Lancer, and investigated Kaineth’s workshop, where he found three dormant Mana Cores resembling Melusine’s aura.
• Shirou helped Hundred-Faced Hassan steal the Mana Cores, then learned Caster was draining people to restore Ryunosuke and had mistaken Saber for Jeanne d’Arc.
• Shirou rescued children from Caster’s ritual in the Einzbern forest and joined Saber in destroying Caster’s monsters, taking the Tome of the R'lyeh after Caster died.
• The Tome absorbed the scattered monsters and grew into a Sea Monster, while dead Ryunosuke used his Command Spells to avenge Caster and finally died.
• Shirou and Saber agreed to lure the Sea Monster away from Miyama Town so Saber could destroy it, and Lancer joined them before attacking Irisviel.
• Shirou wounded Lancer as he intercepted the attack, and Lancer admitted he had targeted Irisviel to eliminate her as a Master.

Shirou transformed into the Nameless King and destroyed the Sea Monster, then forged alliances and forced Kenshinnes to withdraw from the Holy Grail War. After a dream brought him face to face with Morgan, he returned to the Einzbern household as Kiritsugu’s attack and the remaining Servants’ plans loomed.

• Diarmuid’s Geis transformed him into a boar-skinned Magical Beast, and Saber broke their alliance as Shirou agreed to face the Sea Monster.
• Shirou used Dead Count Shapeshifter to accelerate his body into the future, became the Nameless King, and destroyed the Sea Monster with the Blades of Chaos.
• Saber caught Shirou as he fell, and he recovered at Einzbern Castle before allying with Saber and Irisviel and revealing what he knew about the war.
• Shirou persuaded Waver, Rider, Saber, and Irisviel to help rescue Kenshinnes and Sola, then arranged for Saber to lure Lancer away while Waver confronted Kenshinnes at the Hyatt Hotel.
• Shirou tricked Kenshinnes into giving up the war by claiming Sola would die without an antidote, then revealed she had never been poisoned and Kenshinnes and Sola left for London.
• Emiya Kiritsugu ambushed Hundred-Faced Hassan on Fuyuki Bridge, while Shirou dreamed of Arthur’s doomed effort to reclaim Cornwall and met Morgan, who called him her little brother from the future.
• Shirou questioned Lady Avalon about the dream, then joined Saber and Irisviel at Einzbern Castle as they prepared to go shopping and gather information on Gilgamesh and Iskandar.

Shirou challenged Gilgamesh, revived Assassin, and built an alliance with Irisviel, Saber, and the Hassans while the other Masters moved against the Einzbern household. After Kiritsugu explained that Alice’s death could prevent the corrupted Grail from destroying the world, Shirou refused to let him kill her and vowed to remain at her side.

• Shirou confronted Gilgamesh after exposing Tokiomi Tohsaka and Kirei Kotomine’s collusion, then used the Lake of Holy Swords to hold off the King of Heroes until Tokiomi stopped the battle with a Command Spell.
• Tokiomi ordered Kirei to attack the supposedly weakened Shirou and Saber, but Shirou and Hundred-Faced Hassan arranged for Assassin’s apparent death, and Irisviel and Saber fought off the attacking Hassans.
• Shirou revived Hundred-Faced Hassan with a Command Spell and later visited Taiga Fujimura before Rider and Waver arrived at Einzbern Castle over the kidnapping of the McGillicutty couple.
• Shirou and his companions were attacked on the way to the castle, where Rin Tohsaka fought Shirou and Ritseliete before Shirou forced her to release Ritseliete.
• Shirou protected Irisviel from Emiya Kiritsugu’s shot, and Hundred-Faced Hassan pursued Kiritsugu and brought him to agree to speak with Shirou.
• Hundred-Faced Hassan told Irisviel and Saber how Shirou had recruited her, and Irisviel apologized and asked her to join them in supporting Shirou.
• Shirou met Kiritsugu at a Shinto inn and learned that the corrupted Greater Grail could unleash a world-ending entity after enough Servants were sacrificed.
• Shirou refused Kiritsugu’s plan to kill Alice, revealed that she had only days to live after absorbing six Servant souls, and vowed to stay with her.