The Fallen Hero Reincarnates as the Demon King's Son - Chapter 12 - 11 - Highest Floor

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

Zhou Shiguang realized that everything she owns stemmed from a misunderstanding. That day an incident occurred and changed her fate. Now, she has nothing. Facing continuous harassment from her adoptive parents and Zhou family’s true heiress, Shiguang feels like she’s at a dead end.

In her desperation, she clings to Meng Yungui, the third heir of the Meng family. But this heir is definitely not an easy man to please. He may be rich and powerful but he’s got an awful personality. And yet Shiguang decides to persevere. She walks on thin ice with Meng family and every step must be taken with caution.

During this time, her career as an aspiring actress also begins to grow rapidly. From extras to lead roles, her experiences slowly extinguish her innocence and kindness, hardening her heart. And seeing this change makes Yungui gradually fall for her…

- Description from Novelupdates

The Heavenly Demon, Baek Jung-hyuk, woke up as the eldest son of the Dmitry family.

He was known as the fool of the Dmitry family. He was trampled on by the second son. What people thought of him didn’t matter.

The Heavenly Demon. No, Roman Dmitry, cannot live a normal life.

Zou Liang, an otaku with a passionate interest in a fighting game came into a world governed by the beast tribes.

There the ones with high martial ability were respected.

Extreme beauties were a little silly.

This guy felt depressed. Such a crazy really could force a civilized people like him to turn crazy!

Scoundrel Zou began his unrestrained and destructive journey in the Beast God Continent.

Rules? There are no rules!

Principles? His actions defined the principles!

Occupations? Occupations were as unimportant as fleeting clouds. What he sought was omnipotence!

In a different world, Zou held the same passion.

This is a story of a nobody becoming the great conqueror—step by step—as a human, filled with touching emotions, explosive anger, and hot blood forever!

- Description from Novelupdates