Modern Traveler - Chapter 54. Agent

I was reincarnated into another world, and I’ve brought the Horadric Cube from Diablo II with me.
Being a knight is cool and all, but being a wizard is pretty neat as well.
So, which one will it be?

- Description from Novelupdates

After Sang Luo accidentally falls ten thousand years into the future, pure humans have long gone extinct, and genetically evolved Beastmen dominate the world. They are fierce and skilled in combat, possessing nearly perfect, strong physiques and extraordinary fighting capabilities. The only drawback is the scarcity of females.Male Beastmen enter a mating period upon reaching adulthood. Without a female to soothe them, they will go into a frenzied madness. When the only pure human girl, who possesses SSS-level guidance abilities, arrives in the future Beast World, the entire continent goes wild.Upon learning that she has a naturally fertile constitution and can bear top-tier, pure-blooded offspring for the heirless King Beasts, the powerful figures from all sides scramble to curry favor with her, fighting desperately to win the beauty's affection and have children with her...[Sweet Doting + Conquest + Childbearing + Female Protagonist Growth]PS: The author is terrible at writing summaries, please read the main story.

Summary Version 1:

The mysterious boy Ling Chen is saved by a little girl as he lay on the street dying. Years later, he strikes a deal to save this savior-turned sister and enters the virtual world. In a future Earth where advanced warfare has forced nations to settle issues virtually or else suffer the consequences, Ling Chen bursts into the scene and goes from unknown to legend. Yet all is not as it seems, for Ling Chen has a dark past, and there is a greater mystery at hand behind this virtual world.

Summary Version 2:

To save his terminally ill little sister, Ling Chen enters the newly released virtual game world and joins a small gaming studio comprising entirely of women. From now on walking upon his path towards the pinnacle. An ancient, evil item almost forgotten by history, the “Lunar Scourge” helps forge his unsurpassable legend, and causes him to unknowingly step upon a path that is destined to be punished by the heavens, the way of the shura.

In this brutal world ruled by the law of the jungle, Ximen Wei is driven by his desire to return home and escape his past regrets and feuds.

As he becomes increasingly obsessed with achieving his goal, he loses his emotions and humanity, resorting to any means necessary, no matter how unscrupulous or immoral.

He becomes a symbol of massacre and death, a demon god feared throughout the Qi World for his willingness to kill anyone who stands in his way or possesses something he needs.

Follow Ximen Wei's journey as he rises to power, terrorizing those around him in his quest to become a powerful demon god.