MTL - Lord of the People: My Explosion Rate is 100% - Chapter 406 Advanced Gem Resources of the Roaring Kingdom

A man who was once called the world strongest agent ended up becoming a teacher after his retirement to train the new generation of agents. After many years of training his disciples, he is killed at the age of 60 by the ploy of a secret organization and was reincarnated in another world with all his past memories.Though he was surprised by the magic and the strange species of that world, he adapted very fast to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his tight discipline in order to reach his goal: resume his career as a teacher which he left halfway through in his previous life.This is the story of a man who based on the memories and the experiences of his previous life, became a teacher who travels through the world with his new students.

Being given a chance and reincarnated is nice and all, yet why do I have to become that male friend who just watches the protagonist flirting with his harem?---World: Kaguya-sama: Love Is War - Hyouka ----

“The sky was as clear as a wash, the sun radiated over the mountains and forests, and the entire world appeared tranquil, carrying a unique sense of stillness.Watching a person wearing a sexy tiger-print miniskirt, holding a stick, leading a group of more than ten people shouting as they chased after the leader of a fur-covered rhinoceros, Han Cheng couldn’t help but bring his slightly curled right hand to his slightly open mouth and once again exclaimed, ‘Oh my goodness!’(No system, no space, no cheating through crossing over, purely original primitive farming, without elements like cultivating immortality, for readers who enjoy a relaxed farming story, please read at ease.)”

Everything in the world can be repaired!

- Description from novelbuddy