Seven chosen mages and their summoned heroic spirits fight against each other to try and win the Holy Grail: a magical device that can grant any wish.

In February 1999, a string of murders has Shiki Ryougi and Mikiya Kokutou on edge. These crimes share a disturbing resemblance to a similar set of homicides from 1995, when Shiki and Mikiya first met, and awaken a dark, murderous desire that has laid dormant within Shiki's soul ever since then.

June 1998: After spending two years in a coma caused by a traffic accident, Shiki Ryougi awakens with amnesia. She is visited by Touko Aozaki, a wizard and proprietor of a studio called Garan no Dou. Shiki has lost not only the memory of her accident, but also any real sense that she's even alive. Strangely, enigmatic beings begin to attack her...

为了得到“圣杯”能实现一切愿望的奇迹之术，七名魔术师召唤七名英灵发起一场圣战。他们必须奋战到底，因为最终只有一人可以获得“圣杯”的力量－－“圣杯战争”就此展开。这场圣战并没有因为过去的三次战役而平息；如今，第四次战役即将开火。魔术师们带着必胜的决心，聚集到被称为“冬木”的战场迎接这神圣的战役。然而，他们之中却有一人不明白自己到底为何而战。他就是──言峰绮礼。言峰绮礼不能理解自己为什么被选中，并被赋予令咒。不过，命运将牵引他遇见另一位参战者，那就是──卫宫切嗣。卫宫切嗣比任何人都渴望得到“圣杯”。他为了达成目标，用尽所有残酷的手段。在超人气游戏“命运停驻之夜”中，对于10年前的第四次战役只概略提及。关于士郎的养父、凛的父亲，以及年轻气盛的言峰绮礼赴战的真相，如今将一一揭幕......

To celebrate their graduation from university Kaori and her two friends visit Okinawa in southern Japan for a short vacation. At the vacation house, provided by Tadashi's uncle, a numbing stench awaits the girls, and can be traced to a horrendously deformed, legged fish that Kaori kills. More and more of these creatures appear and portend a horrific change for the animal life in the area. A phone call from Kaori's fiancé Tadashi in Tokyo quickly shows the scope of this epidemic, when he is also attacked by these mechanized fish. Kaori immediately sets out on an perilous voyage to find out what happened to Tadashi, helped by Shirakawa — a videographer in search of the truth behind all this...

July 1998 - After a group of delinquents is found dead in their hangout place with all their limbs twisted and torn off, Aozaki Touko receives a request to find the murderer and asks Shiki for help. The main suspect is Asagami Fujino; a girl who was the boys' plaything until recently, who Shiki believes to be "one of her kind".

August 1995: Mikiya first meets Shiki in a white kimono during a snowing day. Later on, at the high school freshmen ceremony, Mikiya sees Shiki in the crowd and chases after her, introducing himself to her. But Shiki hides a big secret: A wave of bizarre murders occur around many loose ends, and no suspects. there are still many questions: Who to believe? Who is the murderer? What is the secret of Shiki? and especially: Who is SHIKI?

物語の締めくくりとも言える、原作の最後に描かれた「空の境界」を完全新作にて映像化！劇場版「空の境界」の全てを集めたBD-BOXも同日発売！ ■ STAFF 原作：奈須きのこ「空の境界」(講談社ノベルス) キャラクター原案：武内崇 キャラクターデザイン・作画監督：須藤友徳／高橋タクロヲ／小船井充 脚本：平松正樹（ufotable） 音楽：梶浦由記 アニメーション制作：ufotable ■CAST 両儀式　：坂本真綾 黒桐幹也 ：鈴村健一

January 1999: Apprentice mage Azaka Kokutou, Mikiya's younger sister, has been ordered by her mentor, Touko Aozaki, to investigate a certain incident in which fairies steal the memories of students at Azaka's school, Reien Academy. Azaka launches an investigation with the help of Shiki.

2007 film by Ei Aoki

2008 anime film by Takayuki Hirao