Berserk of Gluttony (LN) - Volume 1 Chapter 13

I was reincarnated as the heiress of a conglomerate in the novel. However there was a problem, this world was about to be destroyed by a virus monster. All I have left is money, I quickly bought in the countryside and built a shelter to avoid monsters…The world went down much faster than I expected, f*ck! And somehow, even the male leads are trapped with me in my house. But it doesn’t seem like these two wanted to leave. Why is it as if you guys have no intention of going to the female lead? “What the hell are you?” “I think she knew about the fact that the world would be destroyed.” They had a lot of questions for me but I couldn’t answer them. It’s not like you’re going to believe me anyway, right? Now, in my eyes, they just look like good manpower resources. “Now let’s get to work, pay as much as you eat!” If we manage to find a cure for the virus, the cause of the world’s collapse, our hellish times will be over. So, let’s roll the male leads until then and hold out! But there’s one problem. This old mansion I bought turned out to be quite suspicious. What the hell is going on in my house?

“There are no heroes. In life, the monsters win.”

...

In 2106, [Mayhem Online], a fully immersive VRMMO game, was released. Soon, it dominated the world's economy when people could exchange the in-game currency with real-life currency and vice versa.

In the year 2107, Flynn Grey, a 22-year-old college dropout with an ambiguous history, joined in the fray of billions of people that had already started playing [Mayhem]. Hoping to uncover the game's secret and earn a fortune, he spent months on adventures without fruitful results.

For better or worse, Shura, Flynn's in-game character, ends up in a great Wyvern's den, acquiring a hidden class and a monstrous race. Join him as he defeats his past and paves his way into becoming a true legend in both worlds.

Yin BiYue has made the worst purchase ever. After transmigrating countless times into the bodies of canon fodder villains, he buys a ‘Fiend Halo’ from the Rebirth Company, supposedly the best aid for an up and coming final BOSS!

He’s ecstatic to finally get a villainous role where he won’t die after just a few lines, if any at all, and is raring to become the best opponent a protagonist will have… However, why was everyone looking at him with pitying eyes? Why was the protagonist rushing over to help him get out of his crimes? Most importantly, why was his ‘Fiend Halo’ just making things worse?!

Meanwhile, the intern salesperson at the Rebirth Company discovers that he might have accidentally sold a prototype White Lotus Halo to a certain villain…

- Description from Novelupdates

In the interstellar era, gangs and predators are rampant, all over the galaxy. Chen Han, who makes energy blocks for a living, is bullied at the bottom of the society. In order to survive, he throws himself into the darkness and becomes a member of the gang. At the end of the road, he obtained a super warship that can be transformed unlimitedly as long as he has resources, and founded the notorious bandit gang “Beiliang”. At this point, the endless plundering began…

- Description from novelbuddy