The orphan Ning Ruannuan was forced by her greedy adoptive parents to take her twin sister's place and marry Sheng Cangzhou, heir to the Sheng family, who was rumored to have become a vegetable after a car accident. Everyone was waiting to laugh as Ning Ruannuan was abused by the wicked housekeeper and driven out by the family. Little did they know that beneath her meek exterior, Ning Ruannuan was a “little devil” skilled in hypnosis and combat. After the wedding, she used the sharp mind and methods of a psychiatrist to keep the Sheng family's scheming villains dancing in the palm of her hand, while diligently “tormenting” her comatose husband.
However, Sheng Cangzhou was no ordinary vegetable. He was an Immortal Emperor who had failed his tribulation and returned to the modern world after his soul came back to his body. He watched everything coldly in his “vegetative” state, planning to wipe out those ants as soon as his divine powers returned. Instead, he unexpectedly found himself drawn to this “little devil” bride, whose mind was full of wicked schemes. When Sheng Cangzhou made a “miraculous recovery,” the two began playing helpless victims while hiding their true strength, joining forces to crush ruthless business rivals and the family's evil factions. Ning Ruannuan lit the fuse, while Sheng Cangzhou wiped out the whole family. Together, the couple turned the wealthy elite into their hunting ground.