Extra's Descent - Chapter 365: An Unfamiliar Burden [4]

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.

This appears to be this type of story:

Soon after knowing that she was going to marry Song Shi An, Su Tang made a firm resolution to barter to get a bill of divorce within one month!

The reasons are many with one being crucial, that pan of cold noodles has been an eyesore for a very long time!

Actually, it is this type of story:

Has lightning, dog blood, even more it has big meat. Love steamed buns, love beautiful meals, as well as love household tussles.

Go out to build the family fortune, enter the house to steadily accompany the lady of the house! Who dares to interfere? Stiff penalties being served!

- Description from Novelupdates

In a world where supernatural Awakening dictates status, power, and worth, West Einstein is nobody.At eighteen, he’s a Tier 0—unawakened, invisible, and easily discarded. In a city ruled from the shadows by gangs, factions, and mafia families with supernatural bloodlines, Tier 1 awakeners are treated like future kings, while people like West exist purely as background.That truth becomes brutally clear when West’s girlfriend publicly abandons him for Caleb Rourke, a newly awakened Tier 1 backed by a street gang. Humiliated in front of the entire school, West learns a lesson the city enforces without mercy: power decides everything... love included.That same night, something awakens within him.~ The Cuckhold System ~A ruthless system that offers West a way to climb the hierarchy by doing to others what was done to him. By targeting men who believe their relationships are secure and becoming the replacement, West earns Cuck Points, a currency that allows him to grow stronger, unlock abilities, and even awaken as a Tier 1.Failure means losing the system forever.Success means power.As West navigates high school, part-time work at a café, and a city on the brink of chaos due to newly discovered supernatural ruins, he begins to see the world differently. Gangs extort openly. Police bow instead of enforce. Supernatural ruins spark violent competition. Morality bends beneath ambition.What starts as reluctant participation soon becomes strategy.---------NB: MC never gets NTRd after acquiring the system. He is the one who NTR others.