Lou Tingwan transmigrates into the Great Yan Dynasty as the infamous heir apparent of Prince Pingjiang, a woman disguised as a man. Originally, all she wants is to stay alive and avoid the mess left behind by the original owner. Unexpectedly, an accidental fall into the water awakens the young Emperor Nangong Xing's mind-reading ability. On the surface, she appears to be a reckless, spoiled young nobleman, but deep inside, she harbors secrets from another world and overwhelming regret. Meanwhile, the seemingly frail and helpless emperor gradually discovers her hidden sincerity. One wants to escape, while the other wants her to stay. A palace battle of wits revolving around political schemes, secrets, and emotions quietly unfolds.