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...

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!

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!

Rin suspects Kuzuki might be the Master of Caster. With the help of a hesitant Shirou, she implements a dangerous plan in a remote location to test out her theory.

The Holy Grail War is over... The dust has settled... What awaits Rin and Shirou on their next journey?