Modern-day top student Ye Qing travels through time into a fantasy cultivation world, bringing controlled nuclear fusion technology with him. He becomes the so-called useless peak master of the Great Dao Sect. Using cutting-edge technology, he overwhelms the world of immortal cultivation, deploying magnetic storm coils, laser guns, and mechs to defeat divine beasts and challenge Dou Emperors head-on. Along the way, he encounters the reincarnated female emperor Nangong Xi, the sword spirit A Kui, and the dragon princess Ao Shuang. While taking on disciples and building his own enterprise, he uses his knowledge of physics and chemistry to turn the cultivation world upside down. Ultimately, he leads his disciples on a triumphant return to Earth!