Aziel, a fallen angel, driven by the huge need to find her stolen grace, her salvation, her raison d’être, so she could go back to her home and seek out those who tormented her only to find out it wasn’t as easy as she thought of, then she met Sebastian working part-time soul-reaper, part-time student, lost his whole family in tragic accident, only to find out it wasn't just an accident, driven together to find what they lost, they work together to seek answers, only it seems questions pile after another as they go along. Are they willing to give up everything to get what they want? Or will they let go and find something even more valuable for the both of them?