Shen Xue unexpectedly overhears her husband Gu Yecheng promising to take responsibility for an unborn child of his first love Lin Xinyue on a return flight. Enduring in silence, she secretly gathers evidence of infidelity and liquidating family assets. Facing her husband's lies and betrayal, Shen Xue decisively proposes divorce, fighting for custody of their son and high alimony. Ultimately, a paternity test exposes that the child is not Gu Yecheng's biological offspring, allowing Shen Xue to break free from the shackles of marriage, rebuild a family with her senior fellow apprentice Zhang Bing who has silently guarded her for years, and start a new life.