Naruto: The Mist Within - Chapter 104 - : The Improvised Hero

As a promise, he went out into the world as an assassin. 3 years later, after becoming the Supreme Assassin, he gave up on everything he had and returned to the ranks of ordinary people. But one day, Kismet, a mystical game created by the National Research and Development had appeared.

[ WARNING! MATURE CONTENT R+18 ]Synopsis:In the thousands of years of buried and recorded history, the mighty Godents—humans who arbitrarily gained extraordinary powers through a mysterious celestial body known as the Goddess—reigned supreme.After seemingly countless debates and wars of all kinds on how to maximize the utilization of the omnipotent comet that landed on Earth, the Summit Academy was thoroughly built.An academy with unique students whose words were infinitely more absolute than a mere third-world country's government...An academy where human depravity was constantly challenged and displayed against the nature of goodness...In this grand society that was founded for the sake of superficial peace and schemes in the shadows, a certain piece of information reached those in power.“The M-Rev File was lost.”A mysterious document allegedly containing critical information about the Goddess...Now presumed to be at the hands of an heir of one of the Seven World Corporations... and at the same time, a royal student in the very prestigious academy.Amidst the echoes of malice, one mercenary who appeared out of nowhere and with the questionable mission of protecting this female student was admitted.Student Name: Aeon ???Additional Information: ???However, all things considered, on Aeon's first day in this school that could decide a person's future in the blink of an eye, he received a peculiar text message—/ I miss you... /A/N: This R+18 story isn't something just to satisfy the reader's lustful nature...

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.

500 years ago, Chen Xi was devoured by a crack in the void and was transported into a cultivation world.

500 years later, he returned back to Earth after enduring through several hardships and discovered that only 5 years had gone by.

…

In the courtyard, beauty at the side, a candle flame wavering.

A gush of clear wind, half a full moon, the peach tree remains unchanging.

…

Wait, whose kid is this?! Why is she calling me papa? Gazing at the little girl in front of him with skin as pale as jade, Chen Xi froze.

…

　
Returning home from cultivation, starting as a stay-at-home dad.

In this life, not fighting to be a king nor claiming to be a tyrant, only praying to peacefully be a wife-pampering mad devil and a child-protecting daddy!

- Description from Novelupdates