The supporting character's harem is very normal - Chapter 19: I am Charlotte

Lives are a currency, and Noah Vines is rich.Reincarnated into the body of a poisoned magic school professor, Noah is given more than just a second chance at life. Every time he dies, his body reforms. With infinite variations of runic magic to discover and with death as a painful soul wound rather than a final end, Noah finally has a chance to wander the lands of the living once again. And this time, he plans to get strong enough to make sure that he never has to wait around in the afterlife again.

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.

Rejected at birth for lacking Ka, the divine essence that flows through all living beings, Alioth seemed cursed from the very beginning of his new life.When the heavenly kingdom of the gods collapsed, the world was consumed by Azoth: an abyssal fog that mutates every living thing it touches.Humanity's last refuge became Caelestia, a colossal floating citadel built amid the ruins of the gods' former home.Here, lineage is everything. Those who possess superior Ka can demand absolute obedience from the weak. Without it, one becomes fragile and unable to wield magic.But Alioth harbors a hidden gift, born from his past life: the power to bestow names drawn from the myths of his old world.Zeus, Odin, Excalibur, Gáe Bolg. Everything he names acquires the legendary traits of its mythical counterpart.But will this power be enough to survive and decipher the mysteries of this world?Alioth doesn't know yet, but he's determined not to waste his second chance.

Guy Larks was famous in his original world for his widespread charity work in poverty-stricken and war-torn nations.

He was especially known for his efforts in developing schools and educational facilities for children, as well as teaching and nurturing many students.

So it was devastating news to learn that he wouldn't live past his 30th year.

But he was given a second chance! A new life in another world, as a down-by-the-dumps teaching apprentice in a world of magic and wonder. He was given no cheat, just a Repository of Knowledge holding all the information he could bring with him from his previous life.

In this new world, Guy rediscovered his life's true calling! Ride along on Guy's journey as he changes the world one budding mind at a time, as the greatest teacher this world has ever seen!