As a private detective, Yuan Shi holds the secrets of all high-ranking figures in Shanghai. Everyone respects him and is afraid that his dirty work will be made public.
One day, he received a commission - Sheng Mingtang, the eldest son of the Sheng family who had just returned from abroad, disappeared from his room and was replaced by a ten-year-old baby.
What's even more bizarre is that this little baby is actually Sheng Mingtang from ten years ago.
Later, everyone in the Sheng Mansion said that their eldest son's room had magical powers and that he could travel through time and space, traveling back and forth between reality and the past.
Purpose: Eradicate feudal superstition and build a better society together