Toward the end of 2006, rumors began circulating that TYPE-MOON's novel Kara no Kyoukai would be adapted into an anime TV series after Ryogi Shiki, the main character of Kara no Kyoukai, appeared in the 2007 Illustration Calendar of the anime magazine Newtype, and a pin-up poster was announced to appear in the following issue. On December 28th, 2006, an official website of Kara no Kyoukai opened at www.karanokyoukai.com, announcing the new adaption as a feature film Kara no Kyoukai ~Garden of Sinners~, animated by the studio ufotable.
In March 2007, the website was re-newed, and announced that instead of a single film, Kara no Kyoukai ~Garden of Sinners~ would be a 7-part movie series, with the film covering all seven chapters of the original novel. While film adaptations of popular novels and games was common in Japan, at the time it was very rare to see a single work being adapted into a seven-part movie series.
Shiki meets a boy named Tomoe Enjou, a runaway who claims to be a murderer. Shiki allows Tomoe to use her apartment as his hideout. And from that day onward, their strange cohabitation begins. But then one day, Tomoe sees his mother whom he's sure he's killed. Shiki and Tomoe head for the Enjou residence in the Ogawa Complex where the two see Tomoe's parents alive! There Shiki encounters a mage named Souren Araya and finds that he is the mastermind behind all of the incidents involving her up to then. Shiki finds herself trapped within spirals of paradox. And this is only the beginning of a vicious plot by Souren Araya, the powerful sorcerer and archrival of Touko.
Not only did each DVD box feature artworks by Takeuchi, the box also came with a OST CD for that chapter, a special booklet containing artworks.