A side story of the original Kara no Kyōkai - the Garden of sinners movie series divided into 2 parts. In the first part, Shizune Seo, who finds her life too predictable due to her precognition, and Mitsuru Kamekura, who uses his precognition to be a professional bomber, meet Mikiya and Shiki, respectively, and their futures begin to change. In the second part, 10 years after the original series, Shiki and Mikiya's daughter, Mana Ryōgi, spends a day with Mitsuru.
| Actor | Role |
|---|---|
 Maaya SakamotoShiki Ryougi (voice) | Shiki Ryougi (voice) |
 Kenichi SuzumuraMikiya Kokutou (voice) | Mikiya Kokutou (voice) |
 Takako HondaTouko Aozaki (voice) | Touko Aozaki (voice) |
 Yuka IguchiShizune Seo (voice) | Shizune Seo (voice) |
 Akira IshidaMeruka Kuramitsu / Mitsuru Kamekura (voice) | Meruka Kuramitsu / Mitsuru Kamekura (voice) |
 Hisako KanemotoMana Ryougi (voice) | Mana Ryougi (voice) |
 Ayumi FujimuraAzaka Kokutou (voice) | Azaka Kokutou (voice) |
 Hiroki TouchiDaisuke Akimi (voice) | Daisuke Akimi (voice) |
 Saori OnishiNaomi (voice) | Naomi (voice) |
| TTomohiro SatoOld man (voice) | Old man (voice) |
 Yukiko ArugaWaitress (voice) | Waitress (voice) |
 KujiraMother of Mifune (voice) | Mother of Mifune (voice) |