Su Niannian transmigrated into a book as a tragic, vicious female supporting character whose original self suffered from her husband's coldness and her stepmother's schemes, leading to a miserable end. After transmigrating, she resolutely signed a divorce agreement to walk away, but unexpectedly allowed Lu Yanshen to hear her inner voice. Clear-headed and transparent, she personally tears apart the schemes of the younger sister-in-law and the white moonlight, untangles years of misunderstandings, and lets Lu Yanshen know she was the savior from back then. The two heal each other mutually and join hands to guard a fulfilling rest of their lives.