While Others Cultivate, I LVL UP In My Sleep Using The Dungeon System - Chapter 454: Favour

This novel is also known as The Demons Beside Me

Chen Zhao can summon demons and see Death.

“Beelzebub, use your Gluttony ability to treat this patient’s anorexia.”

“Raymond, this old man wants to regain his manly function. You know what I mean.”

- Description from Novelupdates

In the history of geology, more than 500 million years ago, there was a period of the Paleozoic Era known as the Cambrian Period. This period, being the first period of the Paleozoic Era, does not only have a significant meaning for geological research, but also is the most insane, splendid and mysterious period in paleontological history.

Before the Cambrian Period, the Earth’s species were relatively monotonous. When the Cambrian Period started, just after millions of years, which is a relatively short period of time in terms of geology, all kind of species on Earth suddenly evolved wildly. Countless of invertebrates, arthropods, mollusks, brachiopods, annelids etc. have appeared on the planet without any warning, greatly enriching the diversity of the Earth’s species. This million years period is known as the “Cambrian Explosion”. And after billions of evolutionary years, the Earth today blooms with diverse lives.

The cause of the Cambrian Explosion is a huge mystery and also the biggest paradox of Darwin’s theory of evolution.

What if… the Cambrian Period is coming back in this era when human civilization has already conquest the entire planet, and the global species will once again evolve wildly, what kind of challenge will this planet encounter? What kind of fate will humans, who are falling from the top of the food chain, face?

- Description from Novelupdates

Zion, a solo adventurer, recklessly entered a dungeon beyond his ability.Alas, that was the last thing he did. Wandering inside a dungeon for hundreds of years, as an undead, he kept advancing into the dungeon. Slaying monsters left and right until his undead body underwent ‘evolution’ many times over――――By the time he regained his ego, he had already become the strongest undead: 【No Life King】.Humankind, who was made aware of the appearance of a new world-class disaster monster, felt dread as they fell into the abyss of despair. 「The world is… done for.」…Or so they think.「It’s okay, do I look like an evil undead to you?（Smile~）」「「「HIIIIIIIIIIIII?!」」」「…SOMEONE PLEASE TELL ME WHYYYYYYYYYYYYYYYYY?!」This was the tale of the humans who trembled in fear [out of their own convenience] and him, an undead, who actually had no intention to destroy the world.

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!