I Signed-In For A Billion Dollar Mansion From The Very Beginning - Chapter 476 - Popular Across The Internet,

It started out, yeah. It was a crash landing.[Inner Lunatic] is a fantasy RPG infamous for its extreme difficulty.However, to Yoo Chan, who was diagnosed with a terminal illness at a young age, this game was his entire life and has now become his reality.From now on, Yoo Chan has to survive in this world as Nox von Reinharber, the worst villain in the first act of the game. Will he be able to reach the end of the story safely?[This novel does not belong to me; all rights belong to its author. I merely upload it, and translation credits go to: Dursty’sTS, Gozine.]Original Author: Jeong Melody/정선율

This novel is also known as My Apocalypse Domain

On doomsday, Tang Yu unexpectedly got the Lord of the End System, he remained very calm.

Lack of experts? I will construct a pub so I can make ten draws in a row; 　　

Lack of food? I can’t be too cheap with the large pack full of food supplies sent from the market;

Lack of safety? Arrow Tower, Mage Tower Artillery and all kinds of automatic defence buildings. Having many isn’t too many;

Lack of equipment? Workshop production must produce high-quality items. Sir, would you like one? We are having a 20% discount special at nine!

…………　

In short, this is a story of Great Lord Tang building up his territory, attacking some monsters, and ripping off…… Cough, making some money at the same time.

- Description from Novelupdates

A mysterious force has descended upon Earth, giving birth to another terrifying civilization. At the age of eighteen, everyone is forcibly sent into the Horror Game World. While people struggle to survive, submerged in fear, Qin Nuo discovers a unique ability: by influencing the emotions of ghosts, he can earn rewards from the system. Moreover, with each completed mission, he can establish his own enterprises within the Horror World.Thus, Qin Nuo's journey begins:Working as a server at the Nether Springs Restaurant,Serving as the attending physician at the Death Hospital,Becoming a waiter at the Netherworld Hotel,Teaching at the Terror Academy...As Qin Nuo zealously completes one mission after another, he eventually realizes that he has become a formidable figure in the realm of ghosts.