On her seventh anniversary, Thea is abandoned on a stormy bridge by her fiancé Julian, who rushes to save a “innocent” schoolmate. Thea suffers a car accident and loses her memory. When she wakes up, she no longer remembers Julian — and begins to see the truth about him and his mistress.
After being bullied at work, humiliated, and stripped of everything, she is rescued by Alex, a hidden heir. Three years later, Thea returns as “Mystery S,” a Wall Street investor. She destroys Julian’s company, sends him to prison, and drives his mistress away.
Just as she is ready to accept Alex’s love, a butler appears and reveals Thea’s true identity as a lost heiress of a powerful dynasty. Then comes the real shock: the mastermind who ruined her years ago is Alex’s own half‑brother.
Her revenge is over. But a new family war has only just begun.
