Can you recommend some good metaphysics novels? Note that it was metaphysics, not fantasy.

Keeley, a simple plain Jane, hits the jackpot. [No, she did not win the lottery!] At least that's what she thinks when she marries the most eligible bachelor in New York City: Aaron, a wealthy cold-hearted heartthrob and Tycoon. She wants to show the world that she deserves her position and bends over backward to fit into his world. One beautiful day, Aaron hands her a document asking her to sign. A divorce paper... "She's pregnant, and I need to take responsibility." That is the last thing that keeps on playing in her mind before she takes her last breath. Keeley dies, a 'hit and run'. [End of story. Not!] For some unexplainable reason, she wakes up as her younger self. A young high school girl, around the time when she first meets her cheating husband. Remembering her life with Aaron before she died, she makes a promise to herself that she will do everything in her power to avoid him at all costs. Will she be able to keep her promise when Aaron has his own plans as well, specifically for her? Or will she repeat history and fall for him once more... Why not journey with me and find out the truth behind their story. *Cover art by polkadottedscrunchie*

Zhou Yun transmigrated to a fantasy world and was bound to the God Tier Epiphany System. He could enter into a state of meditation and achieve epiphanies that others desired regardless of what he did. Other cultivators immersed themselves fully in hardcore training in order to achieve some improvements in their swordsmanship. On the other hand, Zhou Yun achieved enlightenment in swordsmanship by merely picking up a sword and playing with it a little. His swordsmanship attained perfection in an instant. Other cultivators trained hard in order to break through to the next plane. Zhou Yun merely swept a glance at the fallen leaves in the courtyard. Then, he had an epiphany and broke through to the next plane on the spot. He had insights into everything in the world, and his rate of plane progression skyrocketed. When other cultivators finally became powerful existences after going through various hardships, Zhou Yun had already become the supreme existence through having countless epiphanies.

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Chen Yi, who was in the process of writing a new novel, encountered an idiotic editor. The editor claimed that even though the writers would not get paid for publishing on their site, the writers could extract the powers owned by the main leads if their books were popular. Chen Yi trusted none of the nonsense spouted by the editor. To prank the website, Chen Yi uploaded a novel with censored content in it. In the end, the next morning, he was shocked by the transformation that occurred to his body.

A common man suddenly woke up in one of the cultivation worlds where normal people can be killed at any time but that is not all, but he discovers that he is not a human being either, but rather a fish that has a system that will take you to the pinnacle of all races (If you see any error, do not hesitate to comment, I am using the Google translator, so with your help I will be able to correct the novel to offer a better reading experience)