Nakazono Tsubaki, the cherished daughter of a prestigious family, ends her engagement to Ichijou Takanori after uncovering his betrayal. Her decision, however, sets off a chain of events that leads to her family's ruin-and her untimely death.

But fate grants her a second chance, and Tsubaki awakens in the past, determined to rewrite her destiny. This time, she's resolved to make her marriage to Takanori succeed. Yet, she's unaware of the dark secret he hides-one that could shatter her plans and alter both their futures forever.