Married the True Savior by Mistake

Lin Luosheng, heiress of the Longyin family, spent 3 years helping Su Jiaghao prosper to repay a debt, only for him to marry Song Yingying. Enraged, she marries beggar Lu Mianfeng, vowing to make him the richest. They fall in love, and she discovers he's the true benefactor and lord of Youming Hall.