No matter what, cultivating the "Qing Emperor Eternal Life Art" to the highest level, one could approach immortality.
Unfortunately, the "Qing Emperor Eternal Life Art" actually had thirteen layers, each one more difficult than the last, and it was uncertain when he would be able to complete the cultivation.
Not only that, but according to the "Qing Emperor Eternal Life Art," tempering the body required the consumption of a large number of Heavenly Materials and Earthly Treasures.
Lu Changsheng flipped through the "Qing Emperor Eternal Life Art."
The first level requires the consumption of the medicinal power equivalent to 10 fourteenth-grade Immortal Pills, tempering the body nine times.
The second level requires the consumption of the medicinal power equivalent to 100 fourteenth-grade Immortal Pills, tempering the body nine times.
The third level requires the consumption of the medicinal power equivalent to 10 fifteenth-grade Immortal Pills, tempering the body nine times.