My Dungeon Life: Rise of the Slave Harem - Chapter 987

Xia Yuqing is a shut-in+fujoshi from the 21st century. After an accident, she transmigrates into the body of a young princess forced into a political marriage to another country.

The Imperial Court of Tang Empire became dim and corrupt. The Emperor believed eunuchs. The officials vied with each other for authority. The Tang Empire was about to collapse. The flouring Confucianism, Buddhism and Taoism eyed it covetously. The three sects wanted to contend for the domination of the whole world. Which one would win in the end? Or would they coexist peacefully at last? Armies of different nations invaded the frontier on all sides. People and the whole world were in extreme misery. Who could save them?

A young man of the Imperial Clan was reborn in Chang’an. In the Last Life, he was framed and was driven out of his place. He was the king of the subjugated country. When he wandered on the streets, he wanted to be an ordinary people and live an ordinary life in Chang’an but failed.

In this life, he determined to fight against the heaven and change his own fate. He would not give those people an opportunity who framed him in his Last Life. He would hold his title and his place. In order to maintain order and peace of the world, he was going to wipe out all villains of the whole world with the Imperial Sword, adhere to the emperor’s principle, and enact the new national law. He would rule over the empire to prove himself.

- Description from Novelupdates

“The more the Church supports me, the more it proves I have done the right thing. The more the heretics oppose me, the more it proves I have done the right thing.” “Even when heretics praise me, it further proves I’m right. If heretics stay silent, it shows I have done impeccably!” “If the Church opposes me, it means they have all fallen into evil heresy, and the more heretics oppose me, the more it proves I have done the right thing.” In the year 681, An Su was crowned the youngest Pope in the history of the Church. During his speech, he provided important guidance for the forthcoming de-divination work, emphasizing: “Now that both the Church and the heretics oppose me, it precisely shows I am on an exceedingly correct path!” ... The year 685. “It is not that the Evil God cannot be summoned, but that choosing him to take the stage is more cost-effective.” Such was the assessment of the former holy woman of the demons, Yage Silvia. This statement, once made, instantly attracted attention from all sectors of society—the extensive documentary “The Legend of Pope An Su” continues to broadcast for you.

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates