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

"So… after five full days of working, this is what you've come up with?"

Seraphina fiddled at the edge of the workbench, attempting to poke at a metallic bug no larger than half a joint of her finger, but Ravenna swatted her hand away.

The latter, ignoring Seraphina's evident displeasure, turned to Ansel, "Next, we must conduct a practical test with a sample that approximates a component of the mechanical armor... Hydral, which version of the mechanical armor blueprints did you provide them?"

Ansel shrugged, "Because the subsequent versions would cause significant trouble. I have no desire to see such contraptions within the Empire in the next five years."

"The first one..." Ravenna nodded in approval, "Very well, I should now possess the capability to craft an external piece of armor. Let's start with that."

Mechanical Armor? Gundam! - I