My Mother-in-Law is Reborn [Seventies] - Chapter 177

However, he did not know that he was not raising just a harmless pet, but a biological weapon secretly made by the government… a real monster.

As a former librarian, Rand felt that he had been living an ordinary life, the one that he had reclaimed unconsciously every single day.

Recently, he has been a little upset because the pet fish he accidently brought home to raised seems to have undergo some strange changes

Well, it turned into a merman.

- Description from Novelupdates

When he arrived in this world, many familiar stories had yet to begin: Sleeping Beauty had not yet been born, the magic lamp lay buried at the bottom of a treasure vault, Snow White’s father had just remarried, and the Little Mermaid was still playing in the sea with her sisters. In the heart of the desert, the Land of Oz had not yet welcomed the girl named Dorothy.Then he came—the wizard of miracles and wishes.…Many years later, even illiterate children knew his legend: If you find yourself in the darkest abyss or hold the most fervent desire, you might encounter a handsome boy cloaked in robes in a distant forest or lonely mountains.He is the omnipotent wizard, the all-knowing prophet, the sage revered by kings, and the mentor of legendary heroes. He gave Pinocchio life, granted the Little Mermaid an immortal soul, and heard the pleas of both princesses and beggars.Now, it’s your turn.

The number one swordsman Zhao Jiangui is the martial world’s best hope for peace: All he has to do is seduce the Demon Sect Leader.

(Basis for the web drama “The Birth of the Drama King”)

- 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 powerful enemies by 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.