Rise of the Harem King - Chapter 63: labyrinth

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.

He approached her and announced domineeringly, “Ten million, you're mine!” Little did he know that she would smash his head and flee in panic! Five years later, for the sake of her young son, she endured humiliation and became his wife, always on guard around him, “Get out, what are you doing coming in?” His handsome face darkened, “Woman, you couldn't have forgotten that we are husband and wife, could you?”

Xu He had been his sister’s control group since he was a child. His elder sister was fair, juicy and good at giving birth. She was the heart of the Xu family, a flower in the village, and the talented people who wanted to marry her lined up from the village to the back of the mountain.

The little brother was only good at cooking, and he was busy from the stove to the field all day long, and no one paid attention to his disheveled face. People in the village talked after dinner, how the same parents had two very different children. With his sister as a comparison, it must be more difficult for He ge’er to marry. 

However, there were many young men looking for Xu He, but these people who got close to him were all to find out about his sister. Xu He had been used to it for many years, but recently, even Zhang Fangyuan, who was not doing business in the village, wanted to get something from him.

After inquiring, he tried to hide, but he was stuck on the way home, but the man said: “He ge’er, your cooking is delicious, and it will be even better if you are my fulang.”

- Description from Novelupdates

Chen Rui, an otaku from earth, is reborn into a human body in another world, who falls into the legendary evil, brutal world of the devil called Mozu where humans are treated as food. He has to survive while facing horrors of the devil, violent dragons and a variety of power enemies depending on a strange super system chip and his wits. Surrounded by Devil’s beauties such as black-bellied lolita princess, cold queens, violent dragons, charming poisonous devils …

Wanting to live in the Devil’s world is hard! Wanting to live in the Devil’s world as a human is harder! Wanting a human to be the devil’s son-in-law is hardest!

Let us see how a small otaku uses power and strategy step by step starting from an ordinary human to writing a legend as the devil’s greatest son-in-law.

- Description from Novelupdates