MTL - Lord of the Mysteries - Chapter 8 New era

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

A 29 year old civil employment exam student wakes up in a blank white room and meets a baby angel. This baby angel informs him that he died in his sleep due to heart disease like his father and grandfather. Remembering his mom and their last conversation he says that he will take on a series of life and death tests that the baby angel offers him. From this point on he must put his life on the line and fight in the stage called ‘Arena’. And Every time he clears a test he will gain abilities and weapons to increase his strength. All to clear the tests and get his life back. This is his story of his fights in the ‘Arena’.

This novel is also known as The World Is A Wasteland: I Obtained A Top Tier Shelter

The meteorite destroyed the world, and the global people traveled to the wasteland world!

The monstrous flood, the ice age, the advent of alien beasts, the plant plague…

Under the random disaster once every seven days, if you want to survive, you must build a higher-level shelter!

Lin Yue awakened the 100% treasure chest system, and since then he has opened up a completely different style of painting from others.

Others: “The explosion rate of the treasure chest is too low? I still haven’t killed fifty mutant creatures!”

Lin Yue: “There are too many boxes and there is no room in the inventory. Do I have to upgrade the shelter to build a warehouse? Oh, it’s so annoying.”

- Description from novelbuddy

He was a Martial Arts prodigy, a master of using poisons!He descended the mountain to search for his junior sister but unexpectedly became the School Beauty's bodyguard… From then on, a demon-like student was born! He pursued the School Beauty, took down bullies, and was revered as the supreme ruler of the city! He cultivated Ancient Martial Arts, annihilated formidable enemies, and swept across all directions to ascend to the Peak.