It tells the story of modern college student Charlotte Carter, who undergoes Book Transmigration and becomes a Vicious Supporting Character with a tragic ending, needing to earn a billion bonus by playing the villain. Unexpectedly, the entire Parker Family can hear her inner thoughts after the wedding, and detect the villainous conspiracy in advance. The Parker Family turns to protect her, and together they foil the schemes of Adrian Parker and Autumn Carter. Charlotte Carter gains the full favor of her in-laws, and chooses to stay in this world.