MTL - The Manga of Ten Thousand Realms - Chapter 4

I Became Hades, the God of the Underworld from Greek and Roman Mythology

Kevin Reed gained enlightenment at the brink of death, as he sees the one he pledged allegiance to, and some long-time comrades betray him.

He closes his eyes one last time thinking, 'If only I had known'

Yet against all odds, he finds himself back in time in the body of the fourth prince of the royal family of a soon-to-fall Empire.

This is the story of a Knight who uses the machinations of an Empire to take his revenge on all those who betrayed him.

A man who uses the knowledge of the future to get the best out of every situation.

A man preparing for the coming of the Era of Prodigies and Disaster.

But he would have to challenge adversity if he is to bring his ambitions to fruition.

So come along on his journey filled with twists and turns, enemies and thorns.

As we see the knowledge of the future is used at its best.

But no one, not even Ezra, could've predicted just how much Chaos this single irregularity would cause.

So join us to witness Ezra, as he rises from humble beginnings, well... maybe not so humble, to becoming a peerless existence.

As he rises from the ashes to become a True Sovereign!

This is the rise...of the Infinite Sovereign!

Zavier met Cosmic Consciousness after his death. He was satisfied with every system that Cosmic Consciousness exhibited, so he wanted all of them. Surprisingly, the Cosmic Consciousness obliged him.

Zavier was reborn in an isekai full of magic and alchemy. Now, he had many routes to upgrade. Interestingly, to coordinate these systems, Cosmic Consciousness gave him the gift of being able to duplicate himself. He could clone a finite number of himself to manipulate these systems.

Magus, Alchemist, Mesmer, Tamer, Hunter, Vampire, Werewolf, Dragonknight, Necromancer.....

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By the way, it wouldn't appear NTR or some bullshit harem of courtships. MC of course will have harem but not for cliches.

He is a legendary business powerhouse, a King with a business empire. She is just an ordinary female student. A deal, – a paper marriage, a marriage for four years. Four years later, she turned away fearlessly. She thought that their path would never cross again, but he took her in his stride and refused to let go of everything about her, even interfering with her getting close to other men!

“Luo Yibei, we’ve already divorced! We’re finished! Over!”

“Yeah?”

She had to ask what he meant.

And he shoved a small bun in her bosom with a look of disapproval.

- Description from Novelupdates