Floating Island - Triple S Talent - Chapter 64: Heading to Battlefield #44

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

In the era of steam and mystery, becoming a correspondence student at the Thaumatology Academy was something Shad never thought of.

A whispering voice rang in my ears, who was reciting the poems of foreigners——

The old gods and aliens,

When the brassy rings of fate turn,

The golden runes are flickering.

steam surge,

the fire flickers,

Relic echoes,

The old gods revived.

The outstretched hand after the thick fog,

Pull back the hazy curtain of the crazy age.

Guests from afar explore the lands of the Old Continent,

Striking the melody of the next era.

Came here through the gate of time,

Shad put down his suitcase,

Look at the silvery moonlight overhead.

- Description from novelbuddy

This book is also known as ’Because I Spoiled My Wife Too Much, I Was Forced to Become an Invincible Antagonist.’ Gu Lan transcended into a fantasy novel as a supporting scholar. He even gained a beautiful and delicate wife. He had initially planned to live quietly, avoiding all kinds of trouble based on the original plot, and spending his life peacefully with his beloved wife. But he happened to acquire the ’Read and Copy Books System’! As long as he read and copied books, he could extract cultivation, becoming a saint and even a deity! Due to being overly invincible, Gu Lan casually crushed major antagonists when he ventured outside. Sons and daughters of fortune were eager to acknowledge him! As his strength skyrocketed, his career went surprisingly smoothly as well. One day, Gu Lan, the top scholar from the high school examination, entered the palace and saw a stunning empress behind the curtain, who looked very familiar! “Babe?” “Darling, don’t you not recognize me when I put on the dragon robe?” “...” From that day on, the whole world knew about this extraordinary couple. The original male protagonist: “He’s already a Heavenly Emperor, and I’m just at the third stage of martial power. How am I going to compete?”

[WELCOME TO THE VILLAINOUS LUST SYSTEM] [YOU HAVE 0 LUST POINTS] [YOUR FIRST VILLAIN MISSION IS…] Bo is a lowlife who has an accident as he rushes out of the apartment of the married woman he’s screwing (her husband came back) He wakes up as a farmboy named Levi in the villainous lust system, a platform that promises to make him stronger if he can be a degenerate. Now by performing sexual acts, he can increase his strength and become the greatest ever mage! Yes, this book contains what you think it does, you dirty pervert. in fact it contains plenty of it (it’s a lust system after all)