City planner Li Ming traveled back to the Zhenguan period in a construction site accident and became an ordinary clerk in Chang'an City. He was proficient in modern urban planning and engineering management, but found that the drainage system of this world capital was seriously blocked, the streets were muddy, and the people were miserable. Faced with the obstruction of conservative bureaucrats and the dilemma of shortage of funds, Li Ming relied on his solid professional knowledge and excellent communication skills to gradually win the support of the people, starting from rebuilding a sewer. When Li Shimin witnessed the renovated streets taking on a new look, this "infrastructure maniac" from the future was summoned to the imperial court, and a grand prelude to urban reform began.
