The body double Shen Nuo suffers a wire sabotage fall from a building, and the top agent Guying's soul returns to this body. She tears apart the conspiracy, exposes the fake daughter's sinister scheming, and accidentally learns that she is the Chu family's long-lost legitimate daughter of twenty years. Past knife lights and bloodshed, today good and evil are clearly distinguished. She breaks through the capital maze, joins hands with like-minded people to guard justice, lets go of past life hatred, finds family affection and a home in the bustling human world, and starts her own brand-new life.