The Potter boys are all infatuated, James is, and so is Harry.
On the train to Hogwarts, Harry felt that he had met the girl he wanted to stay with for the rest of his life.
In short, this is a story about a girl who is beautiful on the outside but cute on the inside and is taken home by Harry, who is calm on the outside but sinister on the inside.
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Everything belongs to Rowling.
Purpose: Give Harry and everyone in HP a warm ending