Lin Chenbi, the eldest legitimate daughter of the Yongning Marquis's household, and her younger half-sister, Lin Xianzhu, were drowned in a deep well on the estate on the eve of their coming-of-age ceremony. Reborn on a rainy night three years earlier, they discovered that their deaths in their previous lives were part of a bloody power struggle spanning two generations. The marquis's residence, so dignified in her sister's eyes, concealed hidden schemes; the broken jade bangle in her younger sister's hand held the secrets of the former dynasty under lock and key. As blood stained the strings of their zithers and turned them into blades of revenge, the sisters became each other's key pawns in a whirlpool of power, vowing to drag the entire dynasty's filthy secrets into the light of day.