Her Fiancé Falls for Her Half-Sister, So She Marries His Younger Brother Instead

[Traditional historical romance + legitimate daughter + transmigrated foil + reborn supporting characters] After Gu Sanniang’s illegitimate younger sister took a fall, she began behaving outrageously, acting without rhyme or reason, and even brazenly seduced Gu Sanniang’s fiancé, hoping to become the heir’s wife despite being a concubine’s daughter! Gu Sanniang had thought her fiancé was a proper and upright gentleman, but he fell for her younger sister with surprising ease, disregarding their engagement and willing to give up his status as heir just to marry the girl instead! What a joke. One kept insisting she didn’t care about her future brother-in-law’s status, while the other pleaded that their love was unbreakable. Watching the wretched pair, Gu Sanniang decided to grant their wish! If her fiancé wanted to marry her younger sister instead, Gu Sanniang could just as well marry his brother. Watch as Gu Sanniang, the legitimate daughter of the Gu family, carefully plots her way to a happy life! Gu Sanniang had only wanted to live her own life in peace. Most men were faithless, especially Xie Yu, who was charming and notorious for his womanizing. But after marrying him, she discovered he was nothing like she had expected. She had never planned to give him her heart, yet little by little, he won her over. Her biased mother-in-law, transmigrated younger sister, and reborn concubine all tried to trip her up. But Gu Sanniang met every move with a counter, following the principle that she would leave others alone if they left her alone, but would repay anyone who crossed her. She gave them all a taste of face-slapping and joined Xie Yu in building a life everyone envied!