While working in the South China Sea aboard a salvage ship, Cao Yun discovers the wreck of a Tang Dynasty vessel. As he retrieves a jade hairpin carved with unusual patterns, he accidentally pricks his finger. His blood awakens the lingering soul of a Tang Dynasty female general hidden inside the hairpin, triggering a time-space vortex. Cao Yun's soul transmigrates to the Great Xia Dynasty, a realm much like the Tang Dynasty, where he becomes an eight-year-old boy. He now carries the grand ambition of clearing his father's name, saving the people from war, and ushering in an age of peace and prosperity.
