From Idler to Tech Tycoon: Earth - Chapter 113: Meeting the Famed Ancient

The dawn era after the end of the half century has gradually rebuilt the order, abandoned civilization, and is full of undivided violence and desire.
The noble and powerful pioneers are in charge of the city, and the evil and mad plagues are in the wilderness.
Pure human beings who cannot mutate are the weakest, dominated by the rulers of the pioneers, and are not as good as animals in the wilderness.
A purely humanized young man with a worldly experience has quietly entered the WTO, holding a three-foot long knife and a long-distance desire to boil in the world of purgatory. From the nameless name to the sorrow of the Supreme Court, the name of the black ride is resounding!

- Description from Uukanshu (translated)

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.

Before his gruesome death, Gene Conti was one of the greatest icons of the 1960s. But after spending half a century in Hell, only gambling and the suffering of others excite him.Fortunately for him, his days of boredom are over. Having served his sentence, he finds himself in the body of a young man in the modern era.Now freed, Gene wishes to continue what he missed the most as a dead man: acting.Once again, he aspires to be an actor admired the world over.But will the angels and demons leave him alone? Will his bold attitude clash with the sensitive modern era? Or will the actor from Hell surrender to his lust for chaos and violence?

After transmigrating to a parallel modern city, Zhang Yang became an international student overseas.At the same time, he awakened the Kaitō Kid System Template!His very first warning letter boldly pointed at the British Museum, targeting a lost Dragon Nation treasure!Meanwhile, the British authorities officially announced a full livestream of Kaitō Kid’s capture attempt!And so, under the watchful eyes of the entire world, a one-man show began—A dazzling performance that belonged to Zhang Yang.That belonged to the Silver-Winged Magician, Kaitō Kid!