Naruto: Paws and Whiskers - Chapter 107

Deceived into marriage, exploited for a lifetime as a nanny without pay, and finally beaten to death by her adoptive mother in front of her adoptive father's sickbed, Shen Mianmian's miserable life came to an end.When she opened her eyes again, she found herself back at fifteen. Shen Mianmian vowed to escape her past fate, punish her malicious cousin and adoptive mother, but accidentally shone too brightly in the process.The third-to-last student in school suddenly rose to the top, becoming the candidate fought over by prestigious universities, causing a sensation among all the teachers and students...While others were busy studying, Shen Mianmian was busy starting small businesses to make money...While others were preparing for the college entrance exams, Shen Mianmian purchased the two most notorious haunted houses in Beijing in one go... becoming an oddity in everyone's eyes, they mocked her that even if she had the fortune to buy them, she might not have the life to live in them.While others graduated and were busy looking for jobs, the haunted properties purchased by Shen Mianmian were requisitioned by the government, earning her a considerable amount of demolition compensation.Those who had mocked her couldn't help but slap themselves twice... inquiring everywhere where there might be haunted houses for sale.Shen Mianmian, originally needing to borrow money for tuition fees, used the demolition funds and leveraged her rebirth advantage to buy a suitable plot of land and built a rental building, transforming into a Beijing's wealthiest and most prosperous landlady...One day, Shen Mianmian, carrying a bag of keys and having just collected the rent, was dragged to the Civil Affairs Bureau.“Shen Mianmian, it's time for you to pay back what you owe me.”

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

Dual cultivation isn't a choice; it's a necessity.

After being struck by a truck like most lucky protagonists (or unlucky ones), Vaan found himself transmigrated into the body of an orphan in the world of witches and demons.

However, they didn't always exist.

Demons terrorized the world ever since the Gehenna Realm descended over 300 years ago. but along with them, came mana, giving birth to witches to combat these demons.

Since then, the world of men was dominated by witches, establishing the seven witch kingdoms, which safeguards at the forefront of the demon invasion.

In order to survive in the matriarchal society of the witch kingdoms, Vaan, like all other men who cannot use magic, had to learn how to service the witches to survive.

Nevertheless, it did not come without its own benefits.

Years of research have led the world to the discovery of intimacy between men and women could increase the witches' mana absorption.

But at the same time, men could absorb some of this mana to improve their physique and lifespan.

Thus, since then, an intricate relationship was formed between men and witches in the red-light districts. Love became casual, and dual cultivation is common.

As a prodigy in the art of pleasing women, Vaan lived a smooth two years since his transmigration as an orphan.

However, everything came crashing down in a heartbeat one day when his life was nearly taken, and Lady Eniwse whom he served went berserk.

Even so, that was not the end.

With the awakening of the Witch Hunter System, watch how Vaan takes on the world and becomes the lord of witches.

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Note: Contains lemons.
Hunting witches does not necessarily imply killing witches if you know what I mean ( ͡° ͜ʖ ͡°)

In her last life, Jiang Changning discovered that she was a fake daughter when the real daughter she had never met came to meet the family. Because of Jiang Luojin’s schemes, everyone’s treatment towards her in Hou’s mansion turned bad.

Mother Jiang: You are the one who caused my A Luo to suffer so much!

Brother: A Luo is your younger sister, what’s wrong with leaving the marriage to her? You owe her all this!

Fiance: The only one I love in my heart is A Luo, and it’s all because of your wishful thinking, Jiang Changning, you will never be a humble person!

The betrayed Jiang Changning died on the day Jiang Luo got married.

Once she woke up, she found that she was back in time when Jiang Luo came to

introduce herself. And she suddenly can hear the conversation between Jiang Luo and the “system”.

The other party has been robbing her luck through this system!

The only thing that can counterattack this is the Banquet King who saved her in her previous life!

So…

Banquet King: What are you doing? Stop hugging my thigh!!!

Jiang Changning: It’s just… very comfortable!

- Description from Novelupdates