After Becoming a Traitor, I Became the Marquis's White Moonlight

Refugee Xu Ruyin is brought back to the Marquis's princely mansion by his son Fu to repay him, becoming his assassin and secretly falling for him during training. Fu seeks revenge through marriage, and while she organizes the wedding, she discovers she is merely a substitute for Aheng. Accused of poisoning by Mo Furou, Fu pretends to bury her alive in a well but secretly protects her. Unaware, Ruyin dies of heartbreak and fakes her death. Five years later, on the battlefield, as the leader of Yue's secret agents Aheng, she saves the poisoned and blinded Fu. Together, they stop the war, eliminate the tyrant, clear up past misunderstandings, gain mutual trust, and rule the world together.