After being brutally murdered along with her family, Makina Hoshimura turns into a Shikabane Hime, a living corpse contracted to the Kougon Cult, in order to exert revenge on the mysterious undead organization responsible for her death. She is assisted in this task by Keisei Tagami, her contracted priest and former friend.

After being brutally murdered along with her family, Makina Hoshimura turns into a Shikabane Hime, a living corpse contracted to the Kougon Cult, in order to exert revenge on the mysterious undead organization responsible for her death. She is assisted in this task by Keisei Tagami, her contracted priest and former friend. This series follows the story of Keisei's younger brother Ouri, a boy with an unusual attraction to death, who slowly discovers his brother's secret and gets dragged into the world of the Shikabanes. 
(Source: Wikipedia, edited)

A direct continuation of Shikabane Hime Aka, taking place six months after Tagami Keisei's death at the hands of the Shichisei (Seven Stars), a group of elite Shikabane who act on more than just regrets. As per Keisei's dying wish, Kagami Ouri formed a temporary contract with Makina to save her from degenerating into a Shikabane. Since then, Ouri's been training to become a proper monk so that he can remain contracted to Makina and help her fight against the Shichisei -- the ones who originally killed Makina, the entire Hoshimura family, and now Keisei. However, the traitorous monk Shishidou Akasha has sided with the Shichisei in an attempt to destroy all Shikabane Hime and the entire monk organization that uses them -- Kougon Sect.

This special follows the story of how Isaki Shuuji and Ruo Minai became Contracted Priest and Shikabane Hime.

Reanimated corpses called Shikabane walk the earth, but the Kougon Sect of the Grand Marshal School of Shingon Esoteric Buddhism has the means to combat them. Enter the Corpse Princesses! Undead-killers (usually young women) stand as humanity's first line of defense against the evil that lurks in the shadows, but can humanity tolerate defenders who are corpses themselves...?
 
One Corpse Princess, Makina, may be the first to find out!
 
(Source: Yen Press)