A4KL

There isn't any R-18 chapters till now in this book (221 chaps), Story is pure regret making based and world building but soon harem will be introduced too.. 
"So, Diana, what's your excuse for betraying me?" 
His amber glinted eyes bore into the woman with bloodied, broken blue hair, kneeling in complete disarray.

"... you're evil."

"Oh, so, looking out for all of you makes me evil?" 
The man narrowed his eyes, contemplating the echoes of protagonist halos and heroines' mentality, starkly real now. 
Coming from a world far removed from such grim reality, he had read about these personalities in novels, but experiencing their shortcomings firsthand was a different story.

"How am I evil?" 
He looked down at his foot where a young man, limbless and crushed, lay in a state of complete brokenness, mustering the little strength he had left to utter some words.

"... y.. you ba..stard, You killed millions."

Hearing these words, the man's internal amusement grew at the absurdity of these hypocritical people. 

He had eradicated all the evil organizations within the Empire after ascending to his throne. 

Wars were waged to crush rebellious kingdoms that stood against his Empire, uniting the entire Heidal Continent under one flag—the Selvius Empire.

He shifted his gaze towards another woman with pink hair, her body completely broken, supported by a rock to maintain a semblance of balance amidst the devastation.

"Hmm, so what about you, Karina? Wasn't your family about to be executed by the Aidiac Royal family? Is it wrong for me to have intervened?"

"You killed them without mercy, and although you saved my family, it was not worth it."

"I just saved—"

"It's bullshit. You could have solved everything peacefully without drawing so much blood."

Hearing all this, the man began to understand why those novels depicted these people as hypocritical and low in intelligence.
If he hadn't saved them, they would have suffered the most gruesome fate.
Yet, despite being saved, these ungrateful individuals chose to blame him. The bitter irony of their ingratitude gnawed at him, leaving a bitter taste in his mouth.

"Guess you all have the same reasons." 

The man looked towards the seven people, their disdainful gazes directed at him. 
He had only aimed to change their fates, to rescue some from slavery, others from crippling circumstances, and a few from inevitable betrayal. 

Yet, they all blamed him for saving them, unable to comprehend that he had severed the root causes that would have subjected them to excruciating suffering. 

"Hahaha."

"Indeed, now I see." 
He now understood what those novels had tried to convey—'these idiots think this whole world works like they think it would.' 

'System.........
~~~~~~~~~~~~~~

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Additional Tags :- 
Smart MC, Harem, Time Travel, Yandere, Tsundere, Ruthless, Manipulative, Cunning, Regret, Reincarnation, Transmigration, System, No-forgiveness, Betrayal, elves, werewolves, vampires, dwarves, demons.

**NO YURI, NO INCEST, NO NTR and Anything That Readers Hate, Me myself being a Reader, will never provide content that will destroy reader's mood.

**MC is not Weak and Simp, his mentality maybe, to have soft corner for people in need but by no means he is blind, Don't take his Silence as his weakness.

**About My Writing style - I love to keep Readers on edge, Don't believe what your eyes read as maybe they are some illusions, Coming to conclusions about plots will be your biggest mistake.

Lastly, Don't Ask Questions in Review, it is for your true opinion about Novel, Go through novel once and leave a review, if you like it.

ENGLISH IS NOT MY FIRST LANGUAGE ~ you can expect some errors

Villain 
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Reincarnated and Regressed Villain - Make heroines beg for forgiveness

"Take this. Your next mission is to kill Ryuk Von Selvius."

The moment Leader said those words, he noticed a subtle change in Yui's expression, for the first time since she had arrived here.

Narrowing his gaze, the man placed the letter on the table before retreating back, while observing Yui's now relaxed expression.

"I can't kill him," Yui said calmly, looking at the table before lifting her gaze to meet the man's eyes as she completed her sentence. "Specifically, no one on this world can kill him."

Suddenly hearing those words, both of the men present inside the room looked towards each other, feeling confused. But before they could say anything, Yui asked again, "Who gave this mission to the Assassin Guild?"

Her face was devoid of any expression, her cold amethyst eyes fixed on the envelope.

"You already know, Yui. We can't reveal it," the man said, narrowing his gaze, subtly feeling the air inside the room become heavy.

Chapter 55- Son of Heaven: A great Harem King