Answers to reviews:

AnimeGoji91: Well, here's the new one.

Exodus12345: Sona won't be in the harem, not sure about Rossweiese though.

Perseus12: Well here it is.

OechsnerC: In the words of the Master Chief... I won't.

Dragonrule: Glad you think so.

natsu00: You'll see how he handles a 'reunion' with his former friend.

Ryu Otsutsuki: Hmm...

siddheshp152: Yeah, like who? And how would they work?

Disclaimer: I do not own High School DxD. I only own the OC Damian Mammon-Lucifer.

"FUCKING RUN!" A Priest yelled as he and a few others ran into the church with looks of fear on their faces, as if the Devil himself was coming for them.

That's because he was.

"Close the doors!" Another priest shouted and they had just shut the doors when they were slammed right back open with force enough to send them flying into the wall and narrowly miss the Cross of Jesus Christ. The priests scrambled to get their weapons as Damian walked into the Church, the wind causing his trench coat to billow as he walked like he was Death itself.

The Devil was dressed in a long, leather black trench coat with the hood up. He also wore a gray tank top, black fingerless gloves, black faded jeans and black military boots.

Suddenly, a sword appeared across his back. The sword is a silver-colored longsword. The blade is long and double-edged, with the forward-facing edge curving outward to form the guard. The handguard is is designed to resemble a vortex that reverses at the center of the handguard. The pommel carries a round piece that almost resembles a face.

This was Mortem, which was Latin for Death.

Damian reached up and unsheathed his sword, slashing a priest across the throat and causing blood to explode onto the wall as the priest gurgled and fell to his knees before falling down. Damian walked forward before he became a blur as he shot forward and appeared on the other side of the room, his blade now coated in blood as several priests fell to the floor dead with blood gushing out their wounds and making massive puddles of blood.

"What the hell is going-" Dohnaseek, a male Fallen Angel, came out from the basement and saw the massacre. He went to summon a spear but Damian appeared behind him quickly and slashed his wings off, causing Dohnaseek to let out blood-curling screams as he fell to the ground, writhing around in pain.

"My wings!" Dohnaseek cried. "My fucking-"

SQULCH!

Damian shut him up by raising his boot and bringing it down hard that he crushed the head into bits of blood and brain matter. Not even caring that his boot was covered in blood, bits of skull and brain matter, Damian continued onwards, walked down the stairs and came to the bottom of them to see an alter with a blonde girl dressed in ripped nun clothing. There were three more Fallen Angels, all female.

One of them was an attractive young woman with violet eyes. She had long silky black hair down to her hips and possessed two black feathered wings, as well as a slender body with a large bust. She had on black leather looking straps on, around, and under her breasts, a thong like piece held around her hips by three thin straps, gloves that ran up her arms with small chains hanging from them, some sort of shoulder guard objects on her shoulders with three large spikes emanating from the right shoulder piece, and a pair of black thigh high heeled boots. All in all, she looked far from Holy, more built and bred for Sin if nothing else.

The next was a tall and buxom woman with brown eyes and long, navy blue hair that obscured her right eye. Her attire consisted of a maroon, trenchcoat-like top with a wide collar, a matching miniskirt, and black heeled shoes. The trenchcoat top was open at her chest, giving view to her breasts and cleavage. She also wore a gold necklace around her neck. She appears to wear a white shirt underneath her top, but it can only be seen from the bottom.

The final was a girl with blonde hair styled into twintails and blue eyes. She wore a Gothic Lolita attire, which consisted of a black Lolita dress with white frills, a large black bow on the front, and a green jewel embedded on the collar, white thigh-high socks, and black shoes. She also wore a large black bow on top of her hair.

"Oh shit..." The raven-haired woman's eyes widened upon seeing him as Damian pushes his hood down. She'd know him well from his reputation and the pictures.

"Fuck, what's he doing here?" The blue-haired one whispered with an underline tone of fear.

"Who cares, let's smoke him!" The blonde girl yelled and charged at him with a yell only for Damian to casually throw his sword and it went right through the girl, slicing her into two halves, then Mortem flew back to it's owner's hand.

"Will you surrender... or face the same fate?" Damian asked with narrowed eyes. "Your boss, Azazel, wanted me to bring all four of you back, but I made no promises that I could bring all four back alive... so one or two will do."

"Azazel?" The two ladies shared a confused look. "But... we've been reporting to him! Why would he want us killed?"

Damian narrowed his eyes. "So you've been getting false information and reporting to someone else."

"But we..." The blue-haired woman's eyes widened. "We've been tricked! We weren't meant to kill Hyoudou, but we got a report from Azazel that we had to."

"And who sent you this information?" Damian asked.

"It was Kok...abiel..." The raven-haired woman trailed off. "That... motherfucker!"

"What are your names?" Damian asked, throwing his hood back up and covering half his face in shadow.

"Raynare." The raven-haired one said.

"Kalawarner." The blue-haired bombshell said with a wink at George.

"Come." Damian said, sheathing his sword across his back. "You'll be going back to Azazel. What he does to you isn't my concern."

Raynare and Kalawarner shared a look but nodded and followed him. Upon arriving at the main area of the Church, they encountered Rias Gremory and her peerage.

"Halt!" Rias commanded, Damian slowed to a stop and tilted his head. "Who are you? And where are you going with them?"

"I'm taking them back to their leader so they can face punishment for not reporting to him and going against his orders." Damian said before narrowing his eyes. "So unless you want to end up like the slaughtered scum all around you... I suggest you stand aside. You aren't anywhere near my level, girl."

"You DARE threaten me? The sister of Sirzechs Lucifer?! Kiba!" Rias commanded. The blonde-haired boy nodded and disappeared in a blur... only for Damian's right hand to lash out and stop the boy's sword from hitting his neck, uncaring of it going halfway through his hand.

The eyes of the Devils and Fallen Angels widened.

"Big mistake." Damian said before he chopped Kiba in the neck, kicked him in the stomach then slammed his knee into the blonde-haired boy's face, breaking his nose before Spartan kicking him into the wall. Damian then turned to the Devils. "Anyone else?"

Rias gritted her teeth. "Koneko! Akeno!"

"Ara, ara, we're gonna have some fun~" Akeno giggled sadistically. "i can't wait to hear you scream."

Damian gave her a dull look. "Your screams will be the last thing you hear before death."

Koneko lunged at him with a fist raised only for Damian to catch her fist and twist, making her grit her teeth, then she got thrown right into Rias and the boy Damian supposed was Issei Hyoudou. Akeno sent lightning at him, making him barely say a thing as he rolled his shoulders.

"So... weak." Damian sneered then he blasted Akeno with much more powerful and intense lightning, causing her to scream in pain as she was sent crashing through the wall and to the outside. Damian then walked forward to Rias and casually kicked Issei to keep him down before he pressed his foot on Rias' ankle. "I warned you... and you failed to listen."

With that, he raised his foot and brought it down on her ankle hard, and Rias screamed loudly, clutching her ankle. Damian was uncaring or unflinching at her screams as he left with Raynare and Kalawarner...

Yeah, that just happened. Rias just learned the hard way why you don't get in Damian's way... add the fact seeing her reminded him of Sirzechs, so... yeah, he's not in the forgiving mood.