Rosette

an elite Exorcist for the Order of Magdalene's New York Branch. Though she is sent on many missions regarding the exorcism of many Demons and the general supernatural, her primary focus is on her search for her missing younger brother, Joshua Christopher, who was taken by the demon Aion four years before the series' beginning. In order to do this, Rosette formed a Contract with the hornless Demon, Chrono. However, the consequences of this are that her life is shortened every time she unlocks the seal (in the form of a pocket watch) that contains Chrono's powers and because of this she says that she will not live to see 30. Despite this, Rosette pushes forward, determined to save her brother.