MTL - Holistic Fantasy - ~ 2057 I can't wait to swallow you!

Asura, a noble in the kingdom of Silvara, spent his days quietly until his world ended. Betrayed by his beloved wife and then killed, he swore to get revenge on them in his late moments. Upon death, Asura somehow returned 20 years into the past. Prepared to get revenge on the woman who betrayed him.On his journey for revenge, he discovers true love, friendship, and a life-altering truth.A dark cult controls his fate like a game—even his beloved's betrayal was their work. He learns about his powers and strange bloodlines. Then, about this being his ninth and final rebirth! All to revive their god, using Asura as the perfect vessel.Vowing to destroy the cult's plot and protect his loved ones, Asura forges an alternative path.Becoming the Devouring Monarch

Xia Ji traveled to the continent of Kyushu and became the Emperor of Xia.

I thought I had no worries about food and clothing, and I could enjoy peace of mind.

But he never thought that he might be the last emperor.

The seven kings of the court were in chaos: Qin Wang Ying Zheng, Tang Wang Li Yuan, Ming Wang Zhu Di, Yuan Wang Genghis Khan, Han Wang Liu Che, Song Wang Zhao Ji, and Qing Wang Kangxi.

The harem is full of ruthless characters: Concubine Jiang Yuyan, Concubine Dongjun, Concubine Xuan, Concubine Yuan Zhao Min, Empress Wu? Live? br />This kind of hell start, is it possible to become the last emperor of Xia Dynasty ?

But luckily.

At the beginning of the game, Xia Ji awakened the National Games Summoning System.

Spring and Autumn Sword Armor! Great Confucian Sage of Chu! Soldier in white!

Flatten the harem, rule the world, and suppress the seven kings.

From then on, the great summer that will never end has been created! …

- Description from novelbuddy

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.