Rebirth: Childhood friend of the heroine - Chapter 150 - 149- Celebration

Gu Xingshen! Your sister grabbed my man, you helped your sister grab my man! Your family is not anything good!

In the blood-soaked world of Magus , Aizen, a young man from Earth, finds himself thrust into a brutal reality where Sorcery reigns supreme. Once a lowly servant, despised and humiliated, Aizen hid his true intentions beneath a mask of submission. With each insult endured and every drop of blood spilled, he sharpened his resolve, guided by the mysterious Wisdom System.

Aoki’s resolute face was indifferent. “If the sun doesn’t shine on me, please let me be surrounded by darkness!”
From a different perspective, look at the entire Pokemons world.

- Description from Uukanshu

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!