The heavenly secrets are in chaos, the fairy world and the machine realm have been intertwined for thousands of years, and spiritual power and computing power coexist. Shi Jin was originally an orphan in the mortal world. He awakened the "Ember Vein" at an early age and was able to melt all things, but was unable to practice traditional immortal methods. The Master of the Machine Realm uses the gears of the gods to reshape the way of heaven and wants to devour all living beings with his mechanical will. The Immortal Realm fights back with its souls, eventually falling into endless disputes. Shi Jin found the "Heart Compass" during the war and gained a glimpse of the truth of all things, but found that he was not only an outcast in the fairy world, but also the source of machinery. In order to find the meaning of his existence, he embarked on the heaven-defying road of fusing spirit and machine. Immortal cultivators use their hearts to refine the Tao, mechanics use their intelligence to control objects, but Shi Jin uses the "power of molten embers" to destroy and reshape the laws of all worlds. In the ultimate showdown between immortals and machines, he must make a choice: to become the last watcher of the immortal world, or to lead the rebirth of machinery to nirvana? This book uses the collision of mind and intelligence, the interweaving of fate and choice, to reveal the glory of human nature and the shadow of technology beyond the cultivation of immortality, and opens a new chapter in the integration of fantasy cultivation and mechanical civilization.