Reincarnated as a demon inside a dungeon - Chapter 53

In a certain world, there was someone who excelled in magic combat, people called him 『Sage』. Seeking the strongest combat art, he devoted himself to research every magic and combat arts in existence. And the conclusion he arrived at was very cruel, 『My body is not fit for magic combat』. Yet he didn’t give up. He sealed his own soul with a magic art, and was reborn in a far-off future. And the magic theory in the completely changed world he saw there was of unbelievably low level.

Yun Yuwan carelessly lost Wen Yangzhi's letter, but the foreign butler assured her with certainty, “That was a love letter.”She had been secretly in love with Wen Yangzhi for many years, and upon learning it was a love letter, she returned home overnight.Clutching the hope that he also liked her, she began to respond.At the dinner table, he said, “Come sit here”She ended up sitting on his lap, dressed in suit pants.When he renovated his newly bought villa, she playfully said she didn't like the crystal chandeliers.Some time later, his assistant told her:The letter Wen Yangzhi had sent was not a love letter at all, but a nine-figure check, intended as a birthday gift.The assistant laughed distantly, “Director Wen can't even be bothered to buy gifts, how could you think he liked you, Miss Yun?”—Long afterward, when Yun Yuwan brought up the incident with shame,Wen Yangzhi didn't reply, he just sparked his lighter, a tiny flame dancing on his handsome face, appearing indifferent and aloof.He never said it wasn't a love letter,Not all love letters contain sweet nothings,At least Wen Yangzhi's didn't.He wouldn't do something so cheap and insincere.Knowing that the men who approached her were after her money.He simply wanted to tell her.Her bit of money, he didn't care for it.—A nine-figure check expires in ten days, I've waited for you for ten years, undying affection still clouds my senses.—Self-loving, beautiful heroine x man whose bark is harder than his biteIndependent brand florist x pioneering bankerTheme: Adults don't deal in pretense

He is an undead who is devoid of all humanity, he is the one and only supreme overlord, he is a man who has severe mysophobia.

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