Su Shen, a modern polytechnic man, died unexpectedly and was reborn in the body of a concubine of the Su family in the world of immortality. With the help of modern science and logical thinking, he gradually survives and grows among sects, families, and alien races. As opportunities and crises intertwined, he understood the essence of cultivating immortality and sought "truth" based on the principle of realism. During this period, he met his loyal friend Bai Yao and his wise brother Pei Heng. With the guidance of the reclusive master Lu Qingli, he was involved in power conflicts within and outside the family and the calculations of the alien monk Jing Wuji. Many threads are intertwined, including power and survival, but also friendship and growth. As his strength increased, he gradually revealed the historical truth of the world of immortality and became a leader in the great changes of the times. The whole book uses rigorous logic and meticulous reality to describe the society of cultivating immortals, from the life and death of concubines to the peak of power, with interlocking links and multi-line advancement.