After spending his life at Asahi Orphanage, Yuki is suddenly visited by a man claiming to be his brother. While deciding if he should live with family or stay, Yuki begins to lose control of his powers until his mysterious savior appears again.
Learning of the Giou clan and Duras leaves Yuki confused and shaken, but not quite ready to leave with them. Zess warns him to stay inside during the night of the blood-red moon-the Walpurgis Night. But when the red moon rises, danger comes with it.
Yuki learns about the danger behind his powers and his unavoidable fate. Zweilt Guardians, previous lives...it's all so much to take in. And more pressure is added when new allies appear by his side. Is Yuki prepared for his destiny?