The remnant soul of an ancient immortal venerable who perished during a tribulation three thousand years ago uses a drop of blood to activate ancestral ancient immortal jade, binding the Eternal Return to Simplicity system, and time-travels to possess Lin Xuan, a 102-year-old lonely modern landlord. The original body holds six exorbitantly priced school district houses in the city center and is all alone; the immortal venerable is reborn by borrowing the shell, relying on the system's clairvoyance, mind-reading and sound transmission, immortal healing and fortune modification, and favorability system to continuously eliminate aging and step by step return to the peak immortal body of age thirty.