When "The Classic of Mountains and Seas" is no longer a myth, when the shadow of the three-legged crow passes over the urban steel jungle, the world we know has been quietly reset.
Li Nuo, a college student in the history department, became the person selected by "Myth" in an accident. An ancient book called "Illustrated Records of Mountains and Seas" gave him the qualifications to collect ancient beasts and control them, becoming a "professional master" who walks between reality and fantasy.
However, this is not a gift, but the beginning of a curse.
The mysterious organization [Shanhai Bureau] that maintains order in the world regards him as a dangerous weapon that needs to be "managed".
The fanatical believers [Aragami Kai] who want to return the world to the wilderness regard him as the "key" that must be taken away.
Under the shadow of the law, an "underground black market" composed of desperadoes regards him as a "rare material" that can be exchanged for endless wealth.
This is an era that belongs to the "professional master", a new era full of dangers and chaos of gods and demons. The roars of alien beasts, the secret fights of organizations, the awakening of ancient gods... In order to survive, and to protect the fragile lights of thousands of families behind him, the only thing Li Nuo can rely on is the catalog in his hand, and a group of friends who ignite the fire in despair.
Collecting [Lu Shu] can soothe the soul; controlling [Hie] can tear everything apart.
When the myth comes, mortals can also control the mountains and seas.
