Disclaimer: I don't own anything and I'm not making any money with this, seriously.
Caution: Self-Insert; Non-Canon; Romance; 18+; NTR; Harem
NTR Knight - The Queen Slayer
Chapter 1: Damian 'Surtr' Laevantine
Damian 'Surtr' Laevantine woke up feeling very refreshed. He took a second to fight against the lazy urge to go back to sleep and looked at his partner last night. There, sitting before the make-up counter casually donning her hair was a gorgeous woman. Usually, her most striking feature would be her silvery-platinum white hair because it's almost distinct to her extinct family. But right now, sitting there in all her naked glory, wearing only a pair of laced, thigh-high stockings and laced panty, Damian's greedy purple eyes were entirely focused on her peerless figure instead.
A perfect hourglass figure, a pair of splendid long legs that were neither too thicc or skinny, a slim waist that could be hugged with one arm, a flat stomach with slightly visible abs and a pair of large breasts that both men and women drooled over. To top it off, the woman also possessed the seductive beauty on par with the most beautiful succubus and spotless creamy white skin.
All in all, a top-notch beauty and a treasure that all men coveted.
Such is Grayfia Lucifuge, Wife of the Former Lucifer, the Silver Queen of Annihilation, the Strongest Queen.
"It's 6:30 in the morning and you are having boner just from watching me donning my hair. Just how hopeless are you?" Grayfia slightly said, her tone calm and even, her face all cold and stoic. If it was any other person, they would probably be frightened by Grayfia and quickly apologize, but Damian was different.
He knew Grayfia.
Even better than Sirzechs.
He chuckled.
"Can't help it when the most beautiful woman in the Underworld is all naked sitting before me." Damian calmly said, his gaze not leaving Grayfia's flawless form. Even though he had been sleeping with her since who-knew-when, Damian still couldn't get enough of Grayfia. He would still be excited by the sight of her naked figure just like the first time he slept her.
"Hn. You smooth talker." 'Seeing' the honesty in his compliment, Grayfia shot Damian a knowing glance, her eyes narrowed just a tiny bit to inform him that she was pleased and he would be rewarded. As someone who knew Grayfia even better than her husband, Damian caught the signal and immediately approached her with his 9-inch erection on full display.
He approached Grayfia from behind, grasping her soft, large breast with one hand and hugging her waist with another. Damian then gave Grayfia's smooth, exposed armpit a slow lick, making the her let out a quiet moan. It seemed that Grayfia had already taken a shower because the taste of her armpit was as fresh as morning dew while also having a slight flowery scene.
"I have wanted to do this since I saw you this morning."
"I still don't understand why you are so obsessed with my armpit." Grayfia softly said with a slightly redden face as she fell into Damian's embrace, enjoying his touch. Of course, her hands weren't free. A sex session was only good when both participants engaged in making each other feel good.
With her silky soft hand, Grayfia traced the length of Damian's erection first, feeling its rock-hard surface and powerful veins before slowly stroking it back and forth. While giving Damian a hand job, Grayfia didn't forget to give herself a good fingering too so that her tight hole could be ready for his monstrous dick.
"Honey, I'm not just obsessed with your armpit. I'm obsessed with you." After whispering the last part, Damian gave Grayfia a deep French kiss, his tongue easily slipped past her red lips, engaging Grayfia's one in a slimy, sexy battle for domination.
"…I must be at the Lucifer Office at 9…" Grayfia softly whispered as she felled onto bed. Giving the clock a quick glance, Damian then pecked Grayfia on the lips.
"We have 2 hours and 30 minutes left, baby." With that said, Damian then slowly pushed his rock-hard penis into Grayfia's soaking wet pussy. Grayfia let out a loud moan as she took the entire 9-inch long, 3-inch wide erection into her vagina. Her breathing became ragged, her stoic face gradually turned lecherous with each of Damian's thrust.
In the master chamber of the Laevantine mansion, unknown to anyone, the Strongest Queen, Wife of the Former Lucifer, the Silver Queen of Annihilation was having heated sex with a man other than her husband.
That morning, Grayfia came to work 2 hours late.
Back at the Laevantein mansion, Damian was half-lying in his bed with a glass of wine in his hand, reminising the past. This was the life that he wanted, the kind of life he had always dreamt of even before coming to this world.
It was a secret that Damian wouldn't tell anyone including his closests. He was actually a transmigrator. About 3 years ago, the 'Earther' Damian unexpectedly died in his sleep, and the devil Damian also died in a struggle for the cursed sword Laevantein. His human soul then somehow crossed dimensions and went into devil Damien's dead body, granting him just enough life force for him to be rescued.
The Devil Damian returned, but with the soul of the Human Damian on the inside, such an unexpected turn of event.
At first, Damian was thrilled when he realized that he had come to the world of Highschool DxD. But then, he found out that he had been too little too late to the party. Everything had already ended years ago. Issei had been crowded the new Lucifer for years and married his harem of hot, beautiful women ages ago.
Needless to say, Damian was disappointed, but he wasn't about to give up on his second chance. Life isn't only about beautiful women.
With the Cursed Sword Laevantein, Damian honed his sword skill day by day, and made a name for himself.
Damian 'Surtr' Laevantein.
Damian is his name, Laevantein is his weapon and also his chosen family name which has the approval of the four Satans. And 'Surtr' is, well, his self-proclaim moniker, also the codename of a game character he really likes that also connects to some sword called 'Laevantein'.
A year ago, tired of being a freelance mercenary, Damian settled down in Capital Lilith and applied for a job in the army. With his almost Ultimate-Rank power and Laevantein, Damian easily became a General tasked with guarding capital Lilith and maintain the place security.
It was during that time that he met Grayfia and found out some interesting secrets.
Ever since Sirzechs the form Lucifer volunteered himself to seal the Beast 666, Grayfia had been… lonely. At first, Grayfia thought that Issei Lucifer would fill the gap Sirzechs left behind, she was his maid after all, but to her utter disappointment, he had never required her service. Despite changing her uniform to a sluttier version, revealing more skin, the dumb Lucifer only raped her with his eyes and didn't act.
As one of the most beautiful woman in the Underworld, Grayfia was coveted by many men, including the lecherous current Lucifer. But her fearsome title as The Strongest Queen and cold demeanor turned almost all of them away, including that certain lecherous Lucifer too.
Grayfia herself was also a prideful woman, after all, on paper, she was still the wife of Sirzech the former Lucifer, she would never openly seduce a man. The stalemate went on until one day, Grayfia gave up.
She was by no mean, an impatient woman. But Issei was just too dumb and useless she couldn't bear it anymore. There was one time she even caught Issei fapping in his office mumbling about her in her revealing outfit, but when she confronted him about it, he flustered and denied everything.
That was when Damian knew, his chance had come.
He approached Grayfia, talked to her, cared about her, showered her with praises and affection. It was by no mean easy, but eventually, he succeed. Damian had to admit, a large part of his success was thanks to Issei being a coward who only desired but didn't have the courage to realize it.
Also devil Damian is a fucking handsome asshole with a big dick.
Just a reminder, this story is set after everything is over so it's basically non-canon. There is actually a plot, I think, but it doesn't have much to do with the original story, maybe. I'm not so sure myself about this.
Currently already have plan for: Grayfia, Akeno, Tsubaki
Peace.