MTL - If You Can’t Be a Son-in-law, You Have To Be Sanctified - ~ sheep.

The strongest Demon Lord dies, and reincarnates as a human. Not only that, he because of various incidents turns into the hero’s best friend.

Follow his journey as he tries to help the hero escape his fate, and on the sideline to conquer the continent while he’s at it.

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.

In the tenth year after the new era, the world finally came to an end. Zhang Mu truefully waited for his death, but unexpectedly found that he had returned to ten years ago. With his memory about the future, he swore that he would change the calamitous history, saving the earth from being destroyed! Walking dead, zergs, evolvers, and various mutated animals… nothing can stop him! The first step is to retrieve his identity as an era merchant , then find all the treasures he can remember to enhance himself!

- Description from Novelupdates

{Ding! You've seduced the Ice queen}{Reward: you've earned 10× her net worth: $20M}{Multiple orgasm!}{Extra reward: $10M}As if losing everything wasn’t enough—his job, his pride, and his life, all stolen in a single day. First came betrayal. Then came Truck-Kun.Caleb Monrrow thought it was the end.Until he woke up in another world.Now reborn as the bastard son of a ruthless business tycoon, Caleb enters a life where his name is ignored, his worth dismissed, and his powerful siblings want him erased.He has one mission:Rise above them all and claim the legacy that should’ve never been his.But then…{Ding!}[10X Rebate System Activated]Seduce and conquer all female Cardholders. Receive 10X their wealth.“Getting rich while having fun? Sounds like the perfect deal.”Or so he thought.What the system didn’t say was that every Cardholder is linked to Group X—a shadowy organization that controls wealth, media, and power from the shadows.Each cardholder is powerful, seductive… and hunted.Rival Cardholders, deadly assassins, and secret alliances threaten to unravel everything.And now Caleb is in the middle of it all—with his life, heart, and future on the line.“Wait… the system never mentioned this!”In a game of lust, betrayal, and survival, Caleb must seduce, outsmart, and endure—because in this world, love is a weapon... and wealth is war.