POWER_

Warning: 
1. MC is a mad hound.
2. The story is R-17.99 as the title suggests.
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Ansel of Hydral, the Empire's most notorious villain, devours a peculiar being known as a "Traveller". 
In doing so, he glimpses a future of despair, a foreordained future featuring a war-god who can shatter armies, a saint bearing great sins, a mage discerning the truth, and a heroine of unassailable morality... These formidable "she" would destroy his family, his empire, everything he holds dear.

Upon truly recognizing the cruelty and weight of fate, Ansel has an epiphany.

"If the Empire requires reform, then there is no need for a so-called protagonist. Armed with this knowledge, I can effect change far more efficiently."
"And as for you, the world's chosen ones..."
"If destiny dictates that you cannot be obliterated, then I have no option but to make you fall... fall with me to the very end of the abyss."

In essence, this is a tale of a villain rebelling against fate, taming the chosen daughters of heaven, all while orchestrating a transformative revolution in the world.

—————
Harem
No yuri

A Villain's Way of Taming Heroines

"But how could a person, a living being, possibly possess the capacity to thoroughly decipher the world?"

Flamelle tapped his head, "That's not just any transcendence or power, but a truly incomprehensible perspective from a higher plane, one that cannot be articulated, to analyze the very nature of the world."

"Imagine, a deluge of information, countless enigmatic secrets, ceaselessly assaulting and permeating your soul and will—the things you simply cannot understand, recognize, feel, or even describe, eroding your soul incessantly like that sphere of water, until it completely collapses."

Slightly trembling, Seraphina looked at Ansel before her, "Can't... can't this process stop?"

Ansel's hand reached back, taking hold of Seraphina's, offering comfort without comforting words.

"The Abyss is so named because once tainted, there is no turning back."

Remarkable Seraphina - IV