Rin Tohsaka, a young girl, finds her father's memento. All she has is a catalyst and a pendant. She sets out to summon Saber, a powerful spirit.

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 finally asks Shirou out on a date, but their enjoyment is cut short when Caster makes her move. Shirou is forced to make a difficult decision to protect the people he cares about.

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

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.

While Saber faces off against the guard at the gate, Shirou and Rin try to destroy the Holy Grail!

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