Beneath the everyday bustle of the human world lie cracks in the rules that ordinary people cannot see.
Time runs backward, yin and yang are reversed, life and death trade places, and folk customs defy heaven. As the old Heavenly Dao rots into a shackle and chaotic disorder waits to overturn the world, a calamity ten years in the making quietly begins to unfold among humankind.
Zhou Xu is an ordinary watch repairman at a clock shop in the old city. With his reason reduced to zero, devoid of sorrow or joy, he is the most composed mender of order in the world. He uses logic to break through strange mysteries and rules to patch loopholes, walking in the narrow divide between order and chaos.
Strange happenings in the old city, forbidden folk-custom sites, a sea-crossing burial of the heavens, the collapse of the entire world, invasions from beyond... Layer upon layer of conspiracies emerge. The Seven Hubs seek to overthrow the old world, Zero wants to unify all things, and invaders from beyond scheme to plunder this realm. The Great Paths of every faction clash and contend, while no one spares a thought for the mortal world.
All beings pursue the Dao. He alone stands guard over the world.