Demons Within: I level up endlessly - Chapter 1: Slay your Demons!

Ye Lingchen flips through the “Book of Mathematics”, then solves the world’s ten most difficult problems.

Ye Lingchen flips through the “Book of Language and Literature”, then creates the world’s ten most famous books.

Ye Lingchen flips through “The Art of Acting”, then becomes the king of the silver screen.

Ye Lingchen flips through “Military Boxing”, then becomes invincible.

Ye Lingchen flips through the “Book of Changes”, damn, he ascended to immortality…

- Description from Novelupdates

Theatrical regression life of an old-fashioned villain (kkondae) who recalled his past life.

“There’s nothing I wouldn’t do for a better life.”

——

Survival in the ‘Otherworld’; a place where only the insane can set foot in.

In 2036, mankind landed on the fluorescent Mars for the first time.

In 2052, the first World Budo Tournament will be held, which is also the world’s highest fighting event, and the world is enthusiastic about it.

Xu Jingming, the world’s top player “Gun Demon”, chose to retire when he was twenty-six years old, with an injury left by the competition…

A turbulent new era has begun!

- Description from novelbuddy

Morca, a mere mortal who dared to ascend to the heavens and claim his place among the so-called gods, ultimately failed. Not because of his own weakness, but because he was forced to watch his beloved little brother be slain by the Heavenly Titan Court’s envoy.In that moment of grief and distraction, the Heavenly Titan Court’s envoy, realizing they could not stop him through conventional means, placed upon him the Curse of Eternal Doom, a fate that ensured both the heavens and the abyssal realms would relentlessly pursue him until his existence was completely erased.And it nearly worked. His soul teetered on the brink of annihilation, moments away from being extracted.Then, everything turned blank.===Morca, after 'transmigrating' into the world of Eden, awakened a powerful system that granted him a unique SSS+ talent. This talent allowed him to grow stronger through battle and killing. With the system’s aid, he advanced rapidly, eventually ascending into the Oblivion Realm–a place beyond the known and the unknown. There, he uncovered a great secret that no one had ever imagined existed.During his journey to power, he met Neo Laura, a companion bound to him by the system.===The birth of the Child of Nihility. An entity destined to shake the heavens, the abyssal realms, and even the oblivion realm itself.===Everything in existence has an opposite. So, if nothing exists beyond the darkest space… then shouldn't its opposite be everything?Beyond the endless void outside the universe lies the Oblivion Realm, home of the Nihilians.They are described in a single word, Catalytic.They grow quickly. They Course destruction just as fast.Shrouded in mystery, their existence is a paradox.