In 2026, when spiritual energy revived and ancient seals collapsed, Su Chen, the last watcher, was forced into a mythical war due to the activation of a copy of Chuzhou University's "Buzhou Mountain". He must collect the scattered nine volumes of the original "Book of Mountains and Seas" to deal with the erosion of the "Abyss Society" and uncover the truth about the death of his parents. Su Chen uses the talent of "entering the law" to seal alien beasts and break the bloodline curse that "Jiu family must die at the age of thirty". Through side goals such as retrieving amnesia fragments and recruiting modern guardians, Su Chen continues to become stronger. In the fierce conflict between "absolutely rational divinity" and "protection of humanity", he finally makes the ultimate choice between completely sealing Xu Yuan and breaking the shackles of fate.
