The world where modern cities coexist with the ancient civilization of cultivating immortals appears to be the 21st century society we are familiar with, but secretly there are aristocratic families and secret sects that have been passed down for thousands of years. The aura of modern society is thin, and those who cultivate immortality are hidden in the mortal world. A girl with a "natural body" who was deliberately hidden awakened her special physique on her twentieth birthday and embarked on a lonely path of spiritual practice to break away from the shackles of fate and pursue the supreme path.