At her fiftieth birthday banquet, Gao Suqin feigned madness to test her two daughters. Her biological daughter, Shen Xiuxiu, tricked her into signing a property agreement, hurled vicious insults, and drove her out of the house. Meanwhile, her adopted daughter, Shen Xiaolan, carried her home, slept on the floor, and spent all her savings to treat her illness. Even when her wages were withheld, her house occupied, and she was framed, Shen Xiaolan remained steadfast in guarding her mother's lifelong hard work. When Shen Xiuxiu was about to banish her sister to the plateau, Gao Suqin appeared in full attire and publicly exposed the truth: I have only one daughter, and her name is Shen Xiaolan. Ten thousand fortunes cannot compare to a sincere heart; blood ties cannot buy filial piety, for only sincerity can trade for sincerity.