In her previous life, Shen Siyi loved Song Shibo with all her heart for her entire life. On the eve of their wedding, she witnessed Song Shibo having an affair with Xu Chan in their marital home. Only then did Shen Siyi discover that Xu Chan was Song Shibo's mistress, who had been living with the Shen family for years under the guise of being her cousin, and that Xu Chan's nephew, Xu Xiangyu, was actually Song Shibo's illegitimate son. When Song Shibo realized that his affair had been exposed, he panicked and accidentally killed Shen Siyi. She died filled with resentment, only to unexpectedly discover that she had been reborn on the very day Xu Chan returned to the country. In this life, Shen Siyi refuses to be blinded by love. She vows to make Song Shibo and Xu Chan, the adulterous pair, pay for everything they have done.