Demon Slayer : The Silent Journey - Chapter 9: Rengoku Kyojiro!!

Five years ago, Qiao Nian was schemed against by her sister, Qiao Xin. After spending a night with a stranger, Qiao Nian got pregnant. She did not know who the father of the child was, and eventually gave birth to a stillborn. Under the machinations of her mother and sister, Qiao Nian was stripped off of her shares in Qiao Group and sent to a mental hospital.Five years later, her younger sister, Qiao Xin, was going to be married off to the Second Young Master of the Gu family. He was rumored to be extremely ugly. On the day he was born, the doctor predicted that he would not live past twenty years old. Her mother could not bear to see Qiao Xin marry such a person and thought of Qiao Nian, who was still locked in the mental hospital. Overnight, Qiao Nian was taken out of the hospital to replace Qiao Xin in her marriage into the Gu family.Her mother said, “It's a good thing that Qiao Nian, this good-for-nothing, can replace Xin'er to be a living widow in the Gu family. If Xin'er were to marry into that family, I would be heartbroken.”Qiao Xin said, “Mom, don't say that about Sister. If it weren't for her, I wouldn't know what to do. I'm just worried that Sister wouldn't agree.”Her father said, “Xin'er, you're too kind. Have you forgotten how Qiao Nian slandered you five years ago? She has no self-restraint. She got pregnant before marriage and even gave birth to a stillborn child. We're treating her well enough by letting her marry someone from the prestigious Gu family! What right does she have to be picky?”Qiao Nian sneered. Back then, the scheme against her had only succeeded due to a freak combination of factors, causing her to suffer. She was going to get back at all of them! Everyone thought that her actions were borne from a combination of a loser's mentality and mental illness, but little did they know that this marriage would be a strong union as impactful as Mars crashing into Earth! Taking advantage of her brilliant skills in medicine, Qian Nian made various trashy people and scumbags eat their words. In the blink of an eye, her multiple identities shocked the world as each of them got exposed. It turned out that she was rich enough to rival a country!Later on, Second Young Master Gu placed a pair of Qiao Nian's miniature clones in front of her. Faced with these two children who resembled her and Gu Zhou, Qiao Nian blinked in shock. “When did I give birth to your children?”

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

Humans are clever in tens of thousands of ways, Gu are the true refined essences of Heaven and Earth.

A world where awakened individuals with special powers emerge due to a system. At the New Spring Kindergarten infant class, Gru awakens as an S-rank Hunter at the age of 4. Along with this, there is a quest assigned to her… [Quest: A child needs a strong guardian!] Why is a guardian needed? That is because Gru has no mother or father. Gru, who had no family, is adopted by the greatest Hunter in South Korea after many twists and turns, and along with that, new skills are developed… [Let’s try registering a new guardian in the slot!] [Children can earn ‘filial piety points’ through various activities, which can be used in different areas.] Gathering guardians enables faster growth? ‘That’s amazing!’ Alright, I’ll gather all the S-rank guardians!