Dr. Ayanokoji admires his creation - An Angel Heart Prototype Code Mark II named Kurumi. This experiment of his is the result of his efforts to save the world. Meanwhile, Nakahito is coerced into entering a mad doctor's mansion that supposedly has the detached living head of a dissected woman in the basement. The eleven-year-old Nakahito is drafted by his peers because he comes from a family of mystics, those who practice the Onmyou way. Dr. Ayanokoji, Kurumi and Nakahito are about to cross paths for the first time in a dramatic way.