-the Inheritor of Sauron's will- Harry Potter (V1)

a person was reborn with Sauron in his skull and a System no in just any world but The Magical world of harry potter.

how will he fare in this strange world?

Sauron the corrupter Sauron the deciver by many names he is called but in this one its not just him he will have 2 other personalities to collide with.
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the main character had the entire power of Sauron including the ring.


Mc has a split personality disorder
between him and Sauron one moment he will be a semi-Nice person next he he will be Sauron the deciver or a Nice person. that's the three personalities they have some memories of each other like the important ones but interactions with relatively not important people to the story will be forgotten.