劇場版「空の境界」第四章 伽藍の洞

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.

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?

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".

One day, Koyomi Araragi encounters the horrifying vampire, Kiss-shot Acerola-orion Heart-under-blade A.K.A. the "King of Apparitions." He saves the fatally wounded Kiss-shot by offering his blood at the expense of his own life as a human. Now Koyomi has to face the vampire hunters to retrieve Kiss-shot’s limbs which were taken by these hunters...

The story starts following an incident: a young girl jumps from the top of a building. The image provokes a certain dread, as the girl appears to have been a corpse even before she jumped. The case is dismissed, yet more and more of these suicides occur, and all from the same building. Thus began the rumour, that a ghost inhabited the rooftop of the building.

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.

With help from Meme Oshino, the apparition specialist, Koyomi defeats the three powerful vampire hunters: Dramaturgy, Episode and Guillotinecutter. Koyomi takes back all the limbs of Kiss-shot Acerola-orion Heart-under-blade in order to become a human again.

Koyomi Araragi was turned into a vampire by the legendary vampire, Kiss-shot Acerola-orion Heart-under-blade, and he needs to revive the weakened vampire back to her complete form to return to being human again. The only way for Koyomi to achieve his goal is to fight the three vampire hunters – Dramaturgy, Episode and Guillotinecutter.

Ten Years ago, Genichiro Izayoi died trying to stop the sorcerer Rebi Ra, and as a result Shinjuku became a playground for demons. And now, the day approaches when Rebi Ra will complete his decade-long ritual to plunge the rest of the world into chaos! As Genichiro's son, it falls to Kyoya to venture into the heart of Shinjuku and put an end to the sorcerer his father couldn't beat. Can Kyoya exceed his father's legacy, or will the demons of Shinjuku create Hell on Earth?

Tomoe Enjou is attacked by bullies from his old school and saved by Shiki Ryougi. He asks her to hide him at her place and admits that he killed someone. Several days later, there are still no broadcasts about the murder as if it didn't happen... and when the victims are found, they're alive and unharmed.