The True Daughter's Vendetta: Family Extinction

The protagonist, Su Yin, and her brother Su Heng were abducted as children and sold to the wealthy Jun family, where they suffered abuse and died. Reborn, Su Yin faces the choice of marrying the disabled Mo Chen in place of Jun Xiaoyue. Determined to seek revenge, she marries into the Mo family, hones her skills, and battles the Jun family. She reunites with her biological brother Su Jin and finds love with Mo Chen, leading to a sweet life.