The Defiant Storm: My Family's Regret

A fire swapped the youngest daughter of the magical noble House Blackthorn with a servant’s child. Twelve years later, the true heiress enters the family’s magic academy as a “talentless nobody.” Her brother and the false heiress bully her together, and her own parents look down on her to her face. Then her bloodline awakens, and the family learns the truth: the child they’ve been searching for was the one they were crushing all along.