Qin Mu, a modern time traveler, fell into the Qin Dynasty in the thirty-seventh year of the First Emperor's reign. Ying Zheng was critically ill. In desperation, he lied about mastering the seven-star lantern to extend his life. He unexpectedly extended Ying Zheng's life by one minute and was awarded the title of Imperial Master of the Qin Dynasty. While pretending to be a Taoist master, he dealt with the plots of Hu Hai, Zhao Gao and the Yin-Yang family, wooing Zhang Han to consolidate his power; while activating the seal of Taiyi to unlock his true abilities such as talismans and golden-armored warriors, he transformed from a fake Taoist priest to an immortal cultivator. He assisted Ying Zheng in teaching cultivation, reforming writing, stabilizing the national destiny, foiling rebellion plots, destroying the Yin Yang family, rewriting the fate of the Sand Dune Incident, assisting the Qin Dynasty in creating a foundation for long-term peace and stability, and eventually became the legendary heavenly master who protected the Qin Dynasty.
