MTL - Godslayer In the Comic World - Chapter 34 Destined to be a classic party

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

The magical girl who made the wish of “destruction of this world” came to Ke Xue’s world, and Kewpie became a little Kewpie.

Being chased by someone holding a knife at the beginning, Shuangyue fell silent.
In a world without witches, how would she purify her soul gem?

Originally, he just wanted to be a good and hard-working employee in the winery, but the old man always liked the whole brainwashing operation. Suppressed by the world consciousness, for her own pure land, Shuangyue decided to go to his red square and black square, she would smash the dog world consciousness.

The protagonist is not a good person (highlighted), the three views have been distorted in the magic circle world, not a red square.

Little Cupid: You are my magical girl, and I am your Cupid.
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Rescuing Matsuda Cat and Jingguang Cat, the protagonists directly built a gray empire for Jin Jiu and Sister Bei.
Hagihara and the squad leader are still dead, because the protagonist was not there at the time.
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Do not dismantle the original cp, bring your own cp (but there is no obvious emotional line).

Content Label: Teen Conan
Search keywords: Protagonist: Frost Moon Saya ┃ Supporting roles: Gin, Zhufu Jingguang, Matsuda Jinping, Edogawa Conan, Maorilan, Kayao (Shirazawa Nozomi), Little Cupid (Ruby) ┃Others:

- Description from novelbuddy

I died a heroic, powerful, male Archmage… so why did I wake up as a sixteen-year-old girl?!Theo’s last memory is of a glorious, failed last stand. His next is a beeping hospital machine—and a terrifyingly handsome guy he’s pretty sure is a demon calling him “princess.”Now, he’s Thea Montrose, youngest daughter of a powerful family in a world run on magi-tech and corporate espionage. Between navigating floating cars, enduring his new mom’s hugs, and figuring out the horrifyingly complex mechanics of using the bathroom, Theo has his hands full.But his new family is hiding secrets, and their rivals play for keeps. Good thing this spoiled heiress’s body now holds the soul of an ancient wizard. They wanted the real Thea back? They’re about to get way more than they bargained for.He failed to save his old world from an apocalypse—now he just might save this one (and finally figure out how this bra works).