It is the road to zero-the beginning.

Craving for the power of the Holy Grail that enables to do a miracle, seven wizards (Masters) summoned seven heroic spirits (Servants), and make them performing a battle royal--- that is, never ends to fight until there left only one winner--- Another Duel over the Holy Grail.

The war had not come to an end three times in the past, and now the 4th war have just begun.

Wizards, each holding their earnest desire, gathered to a battlefield called Fuyuki. Among others, there was one wizard who was not be able to find out the meaning in his duel.

His name is---Kirei Kotomine.

Not comprehending his vocation, this perplexed wizard kept asking himself ; Why this incantation was given to him? But his destiny will lead him to encounter one destined contestant.

That is---Kiritsugu Emiya

He was the one who wants to obtain the Holy Grail more viciously, more violently than anybody else.

This story has only been stated in fragment in the [Fate/stay night]. It is the veracity of the Duel over the 4th Holy Grail, took place a decade before. Here reveals the truth of the battle that involved Shirou’s foster father, Rin’s father, ,and young Kirei Kotomine the hero.

Written by: Gen Urobuchi(Nitroplus)/TYPE-MOON
Character drafted by: Takashi Takeuchi

Director: Ei Aoki
Character Design: Tomonori Sudo/Atsushi Ikariya
Colour Scheme: Emi Chiba　　
Art Director: Kouji Etou
Filming Director: Yu’ichi Terao
3D Director: Koujiro Shishido
Music: Yuki Kajiura
Animation Produce: ufotable

Kiritsugu Emiya: Rikiya Koyama
Saber: Ayako Kawasumi
Irisviel: Sayaka O’hara
Tokiomi Tohsaka: Show Hayami
Archer: Tomokazu Seki
Kirei Kotomine: Jouji Nakata
Assassin: Akina Abe
Kayneth El-Melloi Archibald: Takumi Yamasaki
Lancer: Hikaru Midorikawa
Waver Velvet: Daisuke Namikawa
Rider: Akio Ootsuka
Ryunosuke Uryuu: Akira Ishida
Caster: Satoshi Tsuruoka
Kariya Matou: Tarusuke Shingaki
Berderker: Ryotaro Okiayu