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7 years, who will you become? Harry Potter & Y/N Potter (Platonic Twin Siblings) Additional Tags: Slytherin!Y/N, Pure-Blood!Y/N, Powerful!Y/N, Female Character, Twin Sister, Alternate Universe - Canon Divergence, Vesperis Family, Ancient Pure-Blood Family, Parseltongue, Protective Y/N, Morally Grey Y/N, Slow Burn, Found Family, Hogwarts, The Other Child Who Lived, Canon-Typical Violence