You don't want your secret to be revealed by others, right? - Chapter 39 - 15, Xiahong! Xiahong!_3

He was the merciless Soldier King on the battlefield who sent shivers down the enemies' spines; he was the soldier scoundrel in his squad who could make anyone both cry and laugh; he was the Big Brother everyone in the urban underworld aspired to be; he was the male god in the hearts of young girls and beautiful women; he returned with a mission...Uniting the underworld, establishing an economic empire, he vowed to become the supreme overlord of this world...To prevent the world from destruction, to protect world peace, to implement love and truth's evil, the lovely and charming antagonist, he is Xiang Yu, and he speaks for himself...

“Look at you, you were this teeny-weeny when you were little.”Using both hands, Shao Zifeng gestures how small his pet beast used to be. He then raises his head and looks at the gigantic being in front of him.“Just how did you grow into this ferocious form?”

Reidar's seemingly ordinary trip to visit his parents spirals into a chilling nightmare as reality itself begins to unravel. After losing consciousness, he awakens to a horrifying revelation: he is not alone. Monsters lurk in the shadows, and the world he once knew has transformed into a realm of terror.But the strangeness doesn't end there. An alien force has implanted a mysterious system within his mind, granting him access to unimaginable power and knowledge. Through this newfound connection, Reidar discovers that the world has met its catastrophic end—the apocalypse has arrived, and with it, he has acquired extraordinary powers that defy comprehension.Join Reidar on his thrilling quest for dominance as he harnesses his abilities to amass an unstoppable army of beasts, valiant knights, and relentless undead. Follow his rise to power as he becomes a force of nature, feared by all, including those who gave him the very powers he now wields.

With the revival of spiritual energy and the breakdown of the order of species, it is a difficult test whether human beings can still stand at the top of the biological chain.

(There is already an old book, The Strongest Descends in the City, you can read it.)

- Description from novelbuddy