City of Sin (Yanyu Jiangnan) - Vol 1 Chapter 13: Expedition

Humanity was on the brink of destruction. Muyoung, an assassin from the Forest of Death, fell to his knees. There were corpses all around him. For years, he had worked for the Forest of Death and had finally been able to eradicate them. Now, he, himself, was about to die. He closed his eyes as he felt his heart stop beating.

Jiang Liu lost his father at the age of three. When he turned five, his mother decided to run away with another man. At the age of fourteen, he sent off the only relative he had, his grandfather, before carrying a small amount of property and stepping into the big dyeing tank called society.
He was stingy, selfish and absolutely disgraceful. Except for breaking the law, he accumulated all the bad habits available to the mankind. Yet, such a man, after an unexpected death, was bounded by a silicon-based creature called the righteous father’s system. Since then he started his magnificent career in the world system.

World 1: On the ultimate evolution of unquestioning filial piety;

World 2: The man who loves to boast;

World 3: The search for the second spring for ones own mother

World 4: Good father

World 5: The self-cultivation of a national husband

World 6: Acrobat

World 7: Divine stick

World 8: My home has a baby egg

World 9: The correct way of wearing the green hat

World 10: Tremble, you scum man

World 11: An angel who doesn’t like to talk

World 12: The rebellion plan of a martyr

After several worlds went by…..

Righteous father’s system 001: [Shivering], I wonder if I still have time to change my host.

- Description from Novelupdates

The tender girl, Li Qiao, transmigrated into a delicate bride in a poor family.A rural household registration, between two decrepit houses.What she didn't know was that the unambitious loser of a husband would one day become a commercial tycoon, possessing the highest status and countless wealth.She was even less aware that her reborn stepsister was determined to replace her and become the wealthy lady of the house.The stepsister often urged her to leave, “Brother-in-law drinks and fights, he's irresponsible and doesn't deserve you.”Li Qiao was irritated on a daily basis, “He says he can annoy me to death.”The stepsister added, “He's too poor, you and the child will follow him to a life of hardship.”Li Qiao's face blushed with shyness, “He says one child is not enough to split up over, unless we have another one.”The stepsister: ……

This is the story of a young slave gladiator in an underground arena. He doesn’t know about his past or how he got to where he is, only that his name is Aegir, and that he is strong.