The story takes place in the "End of Dharma Era" when cultivation civilization is on the verge of collapse due to over-exploitation and dimensional imbalance. The protagonist Yu Ruizhi, a 72-year-old top doomsday shelter engineer, accidentally triggered the formation while participating in the excavation of the ancient ruins "All Things Return to Ruins Formation". His soul traveled to a declining cultivation plane and possessed an old monk who was in despair due to mediocre qualifications and the end of his life. Relying on the rigorous thinking of an engineer and his unique interpretation of the "Dayan Sutra", he abandoned traditional ascetic cultivation and instead used knowledge of engineering, systems theory and ecology, trying to repair spiritual veins and reconstruct the cultivation system through "infrastructure" means, and established the "Yantian Workshop". This move quickly attracted young monks and low-level casual cultivators who were eager for change, but also angered the conservative sect forces. In the process of promoting the concepts of "quantified cultivation" and "sustainable cultivation", he gradually came into contact with the crisis at the origin of the world: in the dimension of faith, the "divine aggregate" that survives by absorbing the will power of all living beings fears the loss of faith, while the "reincarnation managers" of the underworld believe that the living use technology to extend life and repair souls, seriously interfering with the natural balance of the cycle of life and death. Yu Ruizhi is forced to deal with multiple conflicts between tradition and innovation, life and death, creation and conservation. In the end, he must find a path that can save civilization without violating the deep ethics of "Tao follows nature."
