As Gilgamesh and Bazett sneak up from behind, managing to bring Rin and Luvia back to their original bodies, Illya pushes ahead to confront Darius, using a card she received from Kuro to hit him with a dagger planned to cut off his magic, reuniting with Miyu in the process. However, emerging from Darius' body is his son, Julian, who reveals a large black cube in the sky and uses its dark power to consume Erica and create an army of Heroic Spirits. Just as the army seemingly overwhelms them, they are saved by the arrival of Miyu's brother, who bears a strong resemblance to Shirou.

Putting his own body at risk to use his Trace On ability to create weapons, Miyu's brother is aided by Kuro as he battles Angelica while the others fight off the Heroic Spirits. After Kuro manages to use teleportation to defeat Angelica, Miyu's brother goes after Julian but is heavily injured by a mysterious and deranged woman. As Miyu uses the Archer card to confront her, she becomes possessed by it until Gilgamesh retrieves it from her body. As Julian dispels the woman, Illya brings out her full power in an all-out attack.