Lu Fusheng spent ten thousand years by the side of his peerlessly beautiful master. He never aged and could not die, yet was a "good-for-nothing" who couldn't cultivate.
Until one day, his master gave him a push. "Your karmic ties have come due. Take Dahuang, the Ancestral Qilin, and go down the mountain."
Returning to the mortal world, Lu Fusheng was shocked to discover that his peerless cultivation talent had been sealed away in his family's womb in the mortal realm all along.
He searches for his innate fetal pearl and embarks on a heaven-defying path. To quietly fuse his powers, Lu Fusheng lands a job as a jailer in the Great Qian Heavenly Prison.
From then on, the prison has a new layabout who spends his days slacking off and walking his dog.
"Ding! You outlived the Blood Saber Patriarch. You have obtained Blood Demon's Frenzied Saber."
"Ding! You witnessed the rise and passing of the Great Qian Empress. Your worldly karmic ties are complete, and your cultivation has advanced to the Nirvana Realm."
Seas change into fields, and the Cangyang River changes course.
After outliving generation after generation of peerless saints and emperors, Lu Fusheng suddenly looks back and realizes he has become the one and only taboo across the Myriad Worlds.
Lu Fusheng: "What's the fun in fighting and killing? Why not come to the Heavenly Prison? I'll pour you a cup of tea and see how many years you can outlast me."