Threat to Humanity detected. Counter Force Intervention now implementing– failed. Spiritron Stability impossible. Servant Summoning impossible. Searching for viable vessel alternatives– found. Newly augmented Spirit Origin established. Counter Guardian EMIYA summoned. Class BERSERKER. Mission Objective: Slay all the Demons!

On the eve of the Fourth Holy Grail War, a different Caster is summoned in a different house with a different family's blood. And so, the Fate of the Holy Grail War will forever be changed. This is the story of those seeking redemption for their sins.

Their reunion required a miracle. One must search endlessly for the other and one must wait tirelessly for the other. But before their fated reunion, this is the story of a certain young man's escapades after a shooting star crashes into his tool shed one winter evening. But beneath a familiar face hides a sinister secret that might break his heart.

Because some people need a glass of warm milk to fall asleep. And others require a cup of coffee for a morning kick start. But certain people just need a friend for some peace. Naekusaba Friendship.