MTL - The King’s Return - Chapter 1 First entry

One day, Yoichi who grew up while not knowing his parents has received the news of his father’s death. His father left behind a testament——which said he is to pick only one out of five ‘little sister candidates’?!

When gods gather, lightning will strike and the earth will move. Immortals! Which of the numerous way to immortality should one follow? Immortals are hard to seek, but why should immortals hide? Heaven has no mercy, but humans have emotions, and these emotions hinder the road to longevity!

Lu Gu got a marriage on behalf of his brother and married the fierce hunter in Qingxi Village. No matter how wronged he was, under the coercion of beatings, he was still put on the sedan chair.

How could the Shen family gave up on marrying such a ridiculous thing. After a tumultuous fight, Lu Gu was brought back to the Shen family. He was ready to tremble and seek life.

Who knew that the days after marriage were far less difficult than he imagined, and he could even fill his stomach without having to be beaten. Shen Xuanqing also bought him chickens and ducklings, and built a fence in the backyard to raise chickens and ducks for him. Lu Gu squatted in the backyard and touched the chickens and ducks. After the panic, he was full of joy. Shen Xuanqing said that these were all his.

For the first time, Shen Xuanqing, who was about to go out was stopped by Lu Gu timidly, holding the corner of his clothes. He saw his little fulang showing a short and shy smile, handing over a small bag of fine flour cakes, saying that it was the food for him who was going into the mountains.

Shen Xuanqing was nibbling on the cakes expressionlessly in the mountains, but in his heart he was thinking that the little fulang was good and diligent. He looked good when he smiled, but he was too thin.

- Description from Novelupdates

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.