Kei Kishimoto is a 17 year old student, who lives as average life as one can expect of a high school student, Kei would like nothing more than to break the boring cycle of normality and find meaning to his life outside the normal scope of the world. Kei's wish is soon to come true when he meets the beautiful but mysterious transfer student who calls herself Luna Night.

Little does Kei know but Luna is hiding a dark secret that is set to turn the world as he knows it upside down and catapult him into an adventure through a world he never thought possible...