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?

Saber faces Assassin while Archer and Caster go into battle against each other! What will be the outcome?

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

Now that Archer is no longer Rin's Servant, he is determined to kill Shirou. However, Shirou is not afraid of him. Rin and Saber are willing to do anything to stop Archer!

Wishing to avenge Archer and destroy the Holy Grail once and for all, Rin and Shirou consider their options and try to come up with a strategy.