Growing up in a shrine means seeing spirits or dead people's souls are merely a daily happening for him. It's even part of his job to help those souls pass on to the afterlife.Kururugi Suzaku and his partner/cousin, Sumeragi Kaguya have been acknowledged as world's best in dealing with spirit matters. So it's not really surprising when the Britannian Royal Family calls them for their service. Yet what they never expect is to deal with the soul of the infamous Demon Emperor. Now, what should one do to help the most hated man in the world to achieve his peace?