Primordial Soul's Rebirth - Chapter 53: – Starshard.

The light is here because the darkness exists. Just like that, the human realm exists because the demon realm is here. And in the great palace of the Blade Empire, a crown touches the peak of its glory before it falls from its grace. Lush Von Blade was the royal crown prince of one of the greatest empires on the southern continent. He is loyal but betrayed.On the other hand, where even the Gods fear to set a foot on, a demon lord abides. His grace and cruelty have been unseen for centuries. He is the supremacy in the three realms. While Lush is the light, he is the darkness. Each exists because the other is here.

“She's back, let's get a divorce.”After three years of secret marriage, he suggested divorce when she faced a family's crisis and was pregnant. He also turned a blind eye to her plea for help. Disappointed, she concealed her pregnancy and signed for divorce.She thought they would be strangers after the divorce, but her pregnancy was suddenly exposed.When he proposed remarriage, she angrily said, “I only want to keep the child with me, and if you want to see them, kneel down!”She thought he would give up when faced with difficulties, but she really underestimated his abilities.Soon, a video of him kneeling and begging for reconciliation was displayed throughout the day on the outdoor big screen in the most prosperous area of the city.

The eternal struggle between good and evil, Qin Shuang steps onto the path of cultivating, meeting various heroic individuals on her way to immortality, experiencing various events on her journey.

- 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.