Yume Housako Baker was your average 15-year-old girl, nervously excited to start her new life as a high schooler in her home town of Hokkaido Japan. Unfortunately for Yume, those plans were thrown out the window when her American father got called away to work overseas, forcing he and his entire family to head for his hometown of New York, making Yume more anxious than she already was. After spending two unremarkable years in America with little to no social life or friends, Yume awakes one day to find herself in a school that is not quite her own, in a different state and even more mysteriously she seems to be enrolled in it. Yume sets out to discover the mystery of YOSHA Academy and what is causing her visits.
In the epic conclusion to the Devil's Deal series, Freya has one final chance to discover the full potential of her own power, and to use it to restore balance in the universe - once and for all. After the destruction caused by Roisin, Ferya and Torix come to terms with their losses and mistakes... And prepare for a final battle that will change everything.