The genius young woman Xiao Wan transmigrates to ancient times and finds herself in the body of a good-for-nothing young lady whom everyone in the general's residence mocks. In this strange ancient world, she has the powerful golden finger of modern knowledge at her disposal, yet chooses to hide her abilities and play the fool while quietly outsmarting everyone.
The puppy-like male lead, He Jin, is a young marquis, sweet and innocent, and completely devoted to Xiao Wan. Their path to love is riddled with obstacles. First, her hypocritical stepmother, Madam Lin, and her villainous half-sister, Xiao Rou, repeatedly plot against her to seize control of the general's residence. At court, the two-faced Lord Li also makes an enemy of her, while the spoiled young master Wang tries to frame her. Xiao Wan finds herself caught in one trap after another, repeatedly on the verge of having her identity exposed. The villains' endless schemes are infuriating.
Yet He Jin stays by Xiao Wan's side, quietly protecting her. His devotion is a beacon in the darkness, a welcome surprise. But Xiao Wan is no pushover. Relying on her quick wits, she navigates this perilous battlefield, and readers will eagerly await every counterattack. She must find a way to live as herself amid the complicated relationships and schemes of the ancient world, while spending her life with the man she loves, He Jin. Will she let the villains' plots succeed, or will she turn the tables? See how Xiao Wan uses her wits to write her own legend in this turbulent, treacherous ancient world.