In her previous life, Su Jiuyan gave her heart to the wrong person and was blinded by false appearances. Her family was brought to ruin, her loved ones perished, and even Ji Shengyu, who had silently protected her, met a tragic end. Carrying endless regrets, she returns to the age of eighteen, before any of those tragedies have happened. This time, she puts away her innocence and takes control of the forces of Huayin Tower, determined to protect her younger brother and family while exposing the schemes of those who pretend to be virtuous. At the Zhao family's birthday banquet, she cleverly breaks a trap and saves Ji Shengyu, who is caught in a crisis. Beginning with mutual suspicion, the two form an alliance and come to rely on each other through the turmoil. With undercurrents surging through the imperial court and conspiracies lurking among every faction, she proceeds cautiously, unravels the mystery of the dark sorcery, and protects the warmth of those around her, determined never to repeat the mistakes of her previous life.