Redemption Swaps the Kingdom

Song Zhaoyao, the lost daughter of the Duke of Zhen, falls in love with the scumbag Xie Lin'an. On their wedding day, she is tricked into taking her husband's place in the army. Three years later, after achieving great military honors, she willingly gives all her merits to Xie Lin'an, only for him to petition the Emperor to make Su Qingyue his official wife and demote Song Zhaoyao to a concubine, eventually burning her to death. Reborn, Song Zhaoyao sees through Xie Lin'an's true nature, resolves to seek revenge, and meets Prince Wei Pei Yunjing, who has silently devoted himself to her in her past life.