Isekai Maou to Shoukan Shoujo no Dorei Majutsu - Volume 1 Chapter 1.06

Teenage earth dweller Lu Qingfeng died in a car accident and traversed to a world of cultivation.He acquired the Login Ring of “Primordial”, a massive immersive online game developed by the Earth Federation two thousand years later, and travelled across primordial worlds.

Inside the 3000m underwater station, an international group of scientists and engineers live and research for possible settlement of entire human race. Park Mu-hyun, a reserved dentist joins the station in hopes for a quaint life in the deep sea. However, things quickly go south when the station gets attacked by a mysterious group of people.As the water starts to fill in the living quarters, Park Mu-hyun grabs his backpack and immediately runs for his life, but where to? Now, the peaceful station becomes the ultimate survival stage of cult madness and chaos.

Bluestar 2100, the global land resources are exhausted. Food crisis is coming! For the few available land, the cloud of war shrouded the entire Blue Star! However, at this moment, the National Farm suddenly came! Everyone thought that Blue Star was saved.

However, in the farm, danger is looming! In just one month, the vast majority of people in Daxia have been eliminated from the farm space! Only Su Chen is left! Countless Daxia people fell into despair.

At this moment, a voice suddenly sounded in Su Chen’s mind. Ding your infinite synthesis system activated! Please pay attention to check! ! …

- Description from novelbuddy

The protagonist travels through Shu Mountain and becomes a demonic dragon guarding the heavenly book in Dinghu Peak.