In her previous life, Jiang Qiaoyun was tricked and framed by Sun Youtian, ruining her reputation and forcing her to marry him. She endured years of domestic abuse until, in despair, she jumped from a water tower. Reborn on the very day everything happened, she exposes Sun Youtian on the spot. Sun uses a letter she wrote to Shen Mingli to spread rumors of an affair, but inadvertently reveals the hidden acrostic vow inside it. He then tries to slander her by mentioning a birthmark on her waist, only to be exposed by the bathhouse records. The truth eventually comes out: Shen Mingli paid Sun Youtian to ruin Qiaoyun's reputation and break off her engagement, helping Feng Shuhua steal a university admission spot. Qiaoyun gathers evidence and jointly files a complaint, ensuring that everyone involved is punished. Just as the national college entrance examinations are reinstated, she studies hard with everyone's support and earns admission to a teachers' college in the provincial capital. Before leaving, she burns the old letter, bids farewell to her past, entrusts someone to care for her begonias, and resolutely sets off toward a new life.