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...

A student went missing after her archery club practice. The last person to talk to her was Shinji. And now Shinji is nowhere to be found either!

Shirou and Rin continue investigating the bounded field at the school. Will they be able to solve this mystery and find out who the third Master is?

Archer finally arrives at the scene in the school. Rin fills him in on what happened. Together with Shirou and Saber, they plan to find out who the real Master of Caster is. After losing Rider, Shinji heads to the church!

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