MTL - The Beautiful Wife of the Whirlwind Marriage - Chapter 4 I won't marry you.

A man who was once called the world’s strongest agent ended up becoming a teacher after his retirement, to train a new generation of agents. After many years of training his disciples, he was killed at the age of 60 by a secret organization’s ruse and was reincarnated in another world with his memories intact. Though he was surprised by the existence of magic and the strange species in that world, he quickly adapted 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 rigorous 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 students.

“There is a scar on my stomach which is hard to heal over the years”..

Ning Yu is forced to marry Song Bai Lao, whom he was deeply entangled as a teenager. Because of the misunderstanding they had before, Song Bai Lao keeps bad-mouthing Ning Yu to the point that he even becomes Ning Yu’s nightmare. As they get together, Song Bai Lao finally confronts his feelings for Ning Yu, and Ning Yu finally sees his true feelings and sincerity.

- Description from Novelupdates

Reborn as a Uchiha; only one year left until the night of the clan's massacre?It's over, I'm done for. With Uchiha Itachi taking action, there's no way to survive!However, fortunately, I have a life simulator.Initial simulation begins...[After half a month, you enroll in the Ninja Academy and learn basic knowledge!][After three months, you have mastered the method of chakra extraction and have been influenced by the Will of Fire!][After nine months, you successfully master the Clone Technique.][After twelve months, on the night of the clan's massacre, you watch as your friends and family are all killed before your eyes. In fear and anger, you successfully awaken your eyes, but then, you are killed!][Please choose an item to retain after the simulation!][Option 1: All the knowledge and skills you have learned!][Option 2: The increased amount of chakra!][Option 3: The awakened bloodline state!]Disclaimer: I do not own the rights to the cover image. If you are the rightful owner and would like it removed, don't hesitate to get in touch with me, and I will take it down promptly.------- This is a Translation -------Original Author: 作者:静静小花RAW NAME: 忍界：我有人生模拟器

This is a story of a transmigrator leading a small martial sect to rise. It is a fantasy tale set in a world of ordinary people cultivating and vying for supremacy, without the assistance of any system.