After making progress with the development of his projection magic, Shirou starts experiencing the side effects of having pushed his body to the limit.

Despite losing Saber, Shirou is determined to fight. Since Caster is protected by Kuzuki and Archer, Shirou and Rin decide to team up with another Master. Left with no other option, they set out to find Illyasviel and Berserker.

Rin and Shirou begin their battle against Caster and Kuzuki while Lancer faces off with Archer. Will Rin's plan work in the end?

Shirou's battle with Archer continues. But then an unexpected visitor appears, and new information unfolds.