Xiao Xingchen is the only cultivator on the Xuan Zhen Continent without the slightest trace of spiritual power, yet his medical skills have made him renowned throughout the world. By an unlikely twist of fate, he obtains a secret manual of the Book of Changes and has been researching ways to restore his spiritual roots. At last, Xiao Xingchen comes up with a plan: refine his soul until his spirit can leave his defective body, then find a host with exceptional spiritual roots and exchange bodies with them. That should allow him to change his spiritual roots and rewrite his fate.
At the most critical moment, his original body is pierced through the heart by an arrow from Wu Huan, the Demon Lord he trusted and loved most. An arrow through the heart might leave an ordinary cultivator a slim chance of survival, but with Xiao Xingchen's body, whose spiritual roots were destroyed when he was a child, death is certain. Meanwhile, the host he had prepared, a ten-thousand-year-old sea-camphor tree that had gained sentience, is immediately collected by Wu Huan in his storage pouch.
By another twist of fate, Xiao Xingchen wakes up to discover that he has possessed Wu Huan's spirit pet, a Lin Nan turtle. Only inside the turtle's sea of consciousness does Xiao Xingchen realize that Wu Huan had only ever been pretending to care about him. And his plan to change his spiritual roots and rewrite his fate has somehow been turned, in Wu Huan's eyes and perhaps in the eyes of the whole world, into an advanced immortality technique for changing Heaven and rewriting one's destiny.
Xiao Xingchen's first plan: sever the blood pact and escape the Demon Palace.
Second plan: cultivate, make preparations, and get the sea-camphor tree back.
Third plan: sweet-talk Ye Sa, the Demon Venerable who has had a crush on him, whether secretly or openly, into falling for him.
Fourth plan: cultivate to the Deity Transformation stage and take his revenge!
