The Revenge of the Former Duke's Daughter Who Reincarnated as a Commoner: Modest but Effective

Duke's Daughter Anna was betrayed by her fiancé and best friend, framed, and executed. The girl who should have died was reborn as a commoner's daughter in the same world. Ten years later—her former fiancé Leon had become king, and her best friend Sophia had become queen. Leveraging her knowledge and education from her past life, Anna rises to prominence as a merchant. Through the development of innovative preserved foods, she gradually becomes a renowned merchant known even in the royal capital. The day of reckoning arrives. To rebuild the kingdom's finances on the brink of collapse, the king and queen find themselves bowing their heads to the commoner merchant Anna. They do not know—that the merchant before them is the duke's daughter they once had executed.