The scholar Shen Ruofeng is falsely accused by Noble Consort Rong Qingqing for no reason and dies a tragic death. His beloved, Lu Wanxin, is devastated and resolves to enter the imperial palace to seek revenge. Pretending to approach Emperor Xiao Chen, Lu Wanxin carefully plots her moves at every turn and joins forces with Empress Su Wan. Taking advantage of Rong Qingqing's arrogance and cruelty, she seizes evidence of her attempt to murder an imperial heir, then sets a trap using forged letters to bring down the powerful Rong clan, whose influence dominates the imperial court. After avenging her beloved, Lu Wanxin lets go of everything and visits Shen Ruofeng's grave to fulfill a promise made long ago.