Code Zulu Alpha: Nerd in the Apocalypse! - Chapter 1405: Rough & Rowdy - Hypoxia

Tang Long was brought to the Immortal Cultivation World by an immortal who noticed his affinity to wood and cultivation.
Relying on his amazing talent, became one of the five emperors of that world.
He failed his Heavenly Tribulation and had his soul scattered into pieces but one part found its way to Qin Haodong on Earth.
With his excellent medical skills, he became a divine doctor of traditional Chinese medicine and encountered the baby girl he made before going into the Cultivation World, whose mother was as pretty as a fairy. The little girl even asked him to find more lovers. What a cute girl…

【Let me laugh’s new book, you know what I mean, the quality is guaranteed!】 The Reincarnator Chu Ge was unfortunately bitten by a Black Cat, and because of this, was pulled into the Survival Arena. Upon entering the Survival Arena, humans would randomly transform into animals or plants to compete in life-and-death struggles, with the losers completely turning into animals and living in a daze in zoos forever! Bedrooms, parks, mountain peaks, boundless grasslands, azure seas, and magnificent atmospheres—all became arenas of competition! In the Survival Arena, Chu Ge became an African Lion! Lions fought tigers, dragons contested with pythons! Chu Ge said, “In the survival of the fittest, I must survive!”

The Immortal Path led to Longevity and Sovereign was heading in ease. When the Longevity was no longer in ease, all living beings were just prisoners. Conspiracy, internal strife, and the invasion of the others, all of it emerged together. 

In such a world, there was such a young man. He made his way upstream, stepping on blood, defying the emperor, destroying the various kings, and slaughtering his way through the hundred clans to form an Immortal Path towards the throne of Sovereign! The Immortal Path was endless, while the Sovereign was limited. He used his blood to forge his immortal legend.

- Description from Novelupdates

Riding out the apocalypse on a tropical island isn't exactly a vacation. When mana arrives on Earth, Coop finds himself isolated in paradise with only one real option to survive. He needs to claim a civilization shard and level up. Coop maximizes his chances by carefully selecting a class and committing to progression. He’ll need to grind thousands of monsters to compete on the system's leaderboards while upgrading his settlement to represent the factionless.