MTL - Overlord in Cultivation - Chapter 2122 Emperor

A man was transported to Ancient China and eventually became a servant of a declining household without a male heir. He utilized his wits and modern knowledge to help the household and eventually become trapped in the sea of political turmoils of the period.

- Description from Novelupdates

In the year 2075, yet another fully immersive VR game New Origin took the world by storm with its unparalleled freedom and virtually limitless play world. This classic yet extraordinary game quickly became a ’second world’ for people, and within just three years, the virtual and real worlds became deeply intertwined. People played New Origin to earn a living, to find freedom, and to escape their hectic everyday lives. Elio started playing for similar reasons. Driven by the eternal flame of an artist, Elio embarked on a journey to experience the true freedom this new endless world had to offer—along with a certain special person. Believing in every creature’s right to freedom, Elio challenged the concepts established in this new world with his companions. Unknowingly, this decision set him on a journey to become the strongest existence in this mysterious otherworld.

Once upon a time, a hero had been summoned to a different world in order to defeat the demon king. After the war stretching 3 years ended the commendable hero slew the demon king. And he was forcibly deported back to earth after being dismissed.

Such bullshit!

Elves in addition to beast race, dwarfs and demon race. Even though I wanted to make a harem in the different world I saved! My dream will not come true on earth, where there is no magic at all. Thus, the hero returns on his own. Without the blunder of being extradited to earth this time, he will build a harem of his own in a different world.

[Nakseong High School, the heads of 300 people exploded!] Lee Joon, an ordinary high school student.During the entrance ceremony, he was caught up in a strange phenomenon and died.[You have died.] [Restarting from checkpoint.] [Loading…] And then a message appeared before his eyes.『Welcome to Nakseong High School that is full of mysteries and secrets.Uncover the dark secrets hidden around the school, or fight against urban legends and myths to earn points and unlock special abilities.Then, gather companions and stop the resurrection of the demon king before you graduate.The world is in your hands.』