Shirou Emiya is a high school student who always helps people around him whenever he has a spare moment. His dream has always been to become a hero of justice. One night, he stumbles upon a battle between two Servants...

Rin takes Shirou and Saber to the church in New Fuyuki. She introduces Shirou to Kotomine Kirei. Will Shirou accept to participate in the Holy Grail War despite all the danger?

Rin and Shirou run into a girl named Illyasviel von Einzbern. She has a Servant who is a big mad monster! What does this girl want from them?

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

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.

With everything seeming to be against them, will Shirou and Rin be able to survive?