I Became the Academy's Disabled Student - Chapter 311: Horn hurts...(2)

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.

A boy wakes up with omnitrix as a X-GENE

Waking up inside the ruins of an orphanage, Alexander finds himself chained and sold to slavery.

A modern metallurgist, trapped in ancient times, watch as he tries to play with the cards fate dealt him.

He will make plate armor, invent paper, build roads, teach governance and many more, as he tries to carve a place for himself.

But how can such things not attract jealous eyes?

The naval superpower- Cantagena,

The unstoppable army of- Exolas,

The superpower of the east- Adhania,

The mercantile confederation- Sybarsis,

The religious fanatics- Iyizarid,

And the ever-present- Barbarians of the Barren Forrest,

All want something from each other.

In this ocean of sharks, follow a small carp as it struggles to leap through the dragon gate and establish a dynasty to outlast them all.