Corpse Princess: Aka is a tV series anime that premiered in fall 2008, produced by GAINAX.

About the production: the story comes from a manga, there are 13 episodes of about 24 minutes and its current status is "finished".

Its main genres are action, drama, horror and supernatural, with themes such as Urban Fantasy, Afterlife, Ensemble Cast and Demons.

On AniList, Corpse Princess: Aka has an average score of 67%, a good score, and appears on 26,517 users' lists.

The franchise continues in or follows from: Shikabane Hime: Kuro.

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)

Official synopsis from AniList.