Emperor of Steel - Chapter 704 - The Fight for Time 4

A great demon king who came from another world to conquer Earth. To save the Earth, Li Luyou could only first take care of this great demon king… a little girl proclaiming herself Her Imperial Princess.

- Description from Novelupdates

Humanity’s first 8th Class Mage.

Betrayed, he traveled back 30 years into the past.

The story follows Ian Page, archmage and the first man to break through the 6th class, then through the 7th and become the most powerful mage, an 8th class mage.

After a lifetime of war and killing, the continent was finally unified thanks to his efforts. Now, old, his wish is to live the rest of his life in peace and try to find salvation for all the blood he spilled. However, his old friend, maddened by paranoia, couldn’t tolerate someone so powerful, so he betrayed Ian and killed him.

In his last breath, he cast a time magic that allowed him to travel back to when he was a young boy. With all the knowledge he previously had, he decided to do things better so he could end with less regrets.

Three hundred years since the founding of the Great Jin Dynasty, the fortune of the country has been prosperous. In the imperial court, there are great Confucianists who make their promises.

Zuo Daoqi traveled to this world and became a little eunuch who was about to be thrown into the cold palace.

The court was treacherous, and the rivers and rivers were vicious. He just wanted to live on honestly.

But accidentally opened the script of life, can see through other people’s future scripts, and can get rewards after completing tasks.

The first thing that caught my eye was a little loli who was about to become an empress…

From then on, Zuo Daoqi planned to stay in the cold palace, study the game script well, and train the future empress by the way.

In my spare time, I’ll talk to the queen mother, imperial concubine, princess and so on.

His original purpose was to protect himself, so that he could leave the palace as soon as possible and become a rich man.

…

Until one day, a little eunuch came to Zuo Daoqi’s side,

“Nine thousand years old, the empress dowager said it’s time to serve her tonight.”

- Description from novelbuddy

There’s the so called class transfer.

Among the high school students that were given cheat abilities, Kirishima Ran was given 『Underling Training』for some reason, a skill that can make a woman a slave.

Ran who was driven out by the kingdom using an absurd reason will make use of the given skill freely to take revenge on his classmates, release his desires (This is mainly the reason), and fight off the world’s system.

It’s a story of him using his wonderful skill making his classmates turn to an obedient cute and lewd slave.