Lin Shuyue, a top modern legal elite, traveled overnight and became the deposed princess of the Tang Dynasty. She was trapped in the cold palace and will "die" of illness in three days. The original owner died unjustly, the family was overthrown, and the enemy was at large. Faced with the cannibalistic palace and the decadent aristocratic system, she tore off the pretense of weakness and took up the "Tang Laws and Comments" as a blade, vowing to reshape order with rules.