Created by Daisuke Moriyama.

Within the shadows of a bustling American city, demons are on the prowl, stealing the souls of innocents and causing widespread panic. One person is fighting the infestation of these damned creatures and she shows little mercy. Clad in a habit and partnered by a faithful sidekick, Sister Rosette of the Magdalan Order continues her mission. This gun-toting nun may be tough, but this time, her past is resurfacing, beginning with a revelation: she has a brother!

Haunted by her memories, Sister Rosette is quick to overlook a more pressing matter - the demon Aion wants to make a deal with Chrono, and it might be too tempting to refuse.