She Came Back an Archmage!

Sold for coins by her drunken father and cruel grandmother , Anna awakens a boundless magical potential and vanishes. Seven years later, she returns in a red Archmage robe, shielding the kingdom from a surge of beasts. As her family barters her sister Ivy’s life for royal status and a "fake" Archmage steals her glory , Anna’s gold-red lightning tears the sky. The reckoning begins—those who trampled her dignity will finally know absolute terror.