Shen Tan, a modern infrastructure engineer, transformed into the cannon fodder princess in the palace drama who could not survive three episodes. Faced with the disabled and gloomy prince Xiao Jue, who will turn black and kill his brother in the future, she decisively shows off: she does not want to fight for favor or fight in the palace, she just wants to use modern knowledge to develop people's livelihood projects, farm and provide for the elderly. Unexpectedly, her waterwheel, textile loom and psychological counseling illuminated the prince's dark world bit by bit. When the storm of power intrigues swept across, the two worked together to "break the situation" with development, using wisdom and warmth to find a unique path of redemption in the cold court, and finally created a legend of prosperity.