Harry comes to a safe house, a shrine of a High Priestess named Kuri. She knows nothing about him, but their magic resonates strangely...

Harry Potter is the Boy Who Lived, surviving a lethal attack from the infamous Dark Witch Sadako. When sisters Mana, Reiko, and Kuri attend Hogwarts, it is discovered that one of them has brought Sadako along to rise to power once more. Between this, and the hidden rivalry between Active Power and Practitioners, the years at Hogwarts will be a challenge!

After tangling with a dementor and protecting his cousin, Harry is taken to the hospital by his Aunt and Uncle. The Muggle Hospital. There he meets a girl, a priestess—a witch from Japan—named Kuri who claims him as her comrade—and a member of her coven.

Harry has been assigned to find a woman, a High Priestess. But as he does he realizes she is being targeted by strange creatures—demons—and her power is keeping her safe. Can he protect her from the darkness and herself?

Harry was sent to America for protection from Voldemort. He is led to believe he's living with Muggles, but the girl he lives with is experiencing a transformation, a summons, a Call...of the Ocean. This girl, this mermaid, has the one thing Voldemort craves—immortality, and he will stop at nothing to take eternity away from her.

The Hikawa Clan is a family of Active Power witches, living in hiding since the disappearance of Sadako, champion of the Active Power witches, who was defeated by Harry Potter's survival. Ten years later, Grams is killed by Sadako, possessing her youngest daughter. The girls attend Hogwarts amidst much bullying and bias due to their powers.

Lily and Sirius have been trying to unite their kingdoms through a wedding between their children but it's not working. Harry, Lily's son, and Cristal, Sirius' daughter, simply hate each other. It is when this love blooms that the kingdoms are torn apart by Lord Voldemort and Harry loses the thing that makes him so very powerful—his own heart. Can Cristal return his heart to him?