The Eldest Sister Is the Blade and the Younger Sister Is the Backer.

When the fake daughter steals her sister Xia Qinghuan's place as an exchange student at Cambridge, the real daughter CEO Ye Qingqian, who insists on justice, steps forward decisively to expose the truth, but unexpectedly uncovers the secret of her father's long-term infidelity and hiding another family. This battle around the bottom line of family ties and fairness and justice not only reveals the emotional rifts under the glamor of wealthy families, but also witnesses the courage of women to stick to their principles and defend their families in the face of betrayal and deception, explore the truth and self-worth in the midst of breakups and choices, and convey the positive power of facing difficulties and sticking to their hearts.