A Moonlit Pillow

After returning from studying abroad, Su Yueming witnesses the murder of her parents by Japanese soldiers and Pei Zhen Ting. Carrying state secrets and a wish to save the nation, she adopts the spy alias 'Green Sparrow,' feigns treason, and marries into the Pei family under orders to monitor Pei Yunkai. Unbeknownst to her, Pei Yunkai is the undercover agent 'Cold River Snow.' After years of testing, they fall in love and secretly ally to crush the enemy. When Su Yueming is tortured, Pei Yunkai fights to protect her. Together, they dismantle the conspiracy of the toxic populace and annihilate the Japanese invaders in the puppet Manchurian Palace. Pei Zhen Ting reveals the truth: her parents sacrificed themselves to protect the secrets, while he endured humiliation to remain hidden. Finally, Su Yueming forgives her family's tragedy, hands over the secrets, and learns Pei Yunkai's true identity.