"Kiba: Dark Knight Side Story") is a spin-off V-Cinema of the GARO television series, set for release on Blu-ray and DVD on September 7, 2011.

Mika Hijii also reprises her role as Kaoru Mitsuki, the female lead of Garo and one of Ryuzaki's patients who Barago intends to use to revive the Horror Messiah.

Singer Leah Dizon joins the cast of Kiba Gaiden as the mysterious woman known as Makai Guide Elda who directs Barago towards his goal.

Set around the final chapters of the "Black Fang" arc of Garo, the 23rd episode in the first series, the movie is divided into three acts: Memory, Knight, and Makai.

Awakening after being kidnapped from Saejima Manor, Kaoru finds herself in a room with Barago and a Makai Guide, Elda, as she learns her part in the former's plan to summon the Horrors' source, Messiah.

Christened as "Kiba the Dark Knight", Barago eventually breaks the limits of his armor and proceeds to devour many Horrors to reach his quota of one thousand in preparation of absorbing Messiah.

As Elda lay dying, aware that Gyanon's corpse has been mysteriously taken away by reading her tarot cards earlier, she witnesses Barago arriving for the missing Horror and killing the two Makai Knights instead.