Transmigrating into a cannon-fodder fiancée from a male-oriented web novel's engagement-annulment trope, Lin Yueman unexpectedly arrived three years too early. She was supposed to visit and humiliate the down-and-out male lead, but Fu Shiyi before her happens to be a brilliant and breathtaking genius sword cultivator of the Sword Sect, and her lines for breaking the engagement ended up sounding like a confession instead. Biting the bullet to push through the plot and complete her missions, she simultaneously bears the wrath of heavenly punishment and secretly saves the male lead's younger brother who was fated to die. When Fu Shiyi's spiritual roots are completely destroyed and he falls into the dust, she abandons her character settings to silently guard him. When all misunderstandings are finally cleared away, only gentleness remains in the cold-faced sword cultivator's eyes, and a single slip of an old engagement paper ultimately becomes a mutual running towards each other.