DICLAIMER: I own nothing except my oc.

High school DxDxD

Ch. 1 an odd way to end a first date

Kuoh Academy yard It was a beautiful sunny day at Kuoh Academy there we found D, the ultimate dark knight, who has enrolled in the school as a second year under the name Issei Hyoudou, and the reason for that is cause he wanted to experience school life. He is enjoying the time between classes his sides are Matsuda and Motohama two notorious perverts and because D was bored, he often accompanied them at their peeping and other 'activities' which gave him the stigma of pervert as well and making them the 'Perverted Trio'.

"Ah, this so damn annoying." Matsuda practically screamed in despair as he stood up.

"What is?" D asked curiously as he too stood up.

"It's our second year in Kuoh Academy a previously all-girl school and none of us had any let alone a girlfriend." Matsuda lamented in despair.

"And to think there are so many free girls with hot curvy bodies in the academy especially those transfer students from overseas. " Motohama added in despair as he stood up as well.

"Who knows girls aren't as simple as we are." D commented.

As they were announcing their thoughts about they heard a group of three giggling the three turned and they saw them approaching a blond haired 'pretty boy'.

"Hey Kiba what are you doing right now?" One happily asked. "Yeah, you maybe want to sing karaoke with us?" Another happily added.

"Thanks, but I have a meeting with my club." He answered politely while his face seemed to sparkle. "Ah, that's too bad." One of them said. "I really wish I could go though, thank you ladies for inviting me." He said to them and then left.

"Kiba Yuuto, class 2-C basically every girl wants him…" Motohama stated in annoyance. "…And every guy wants him dead." Matsuda added in anger.

"Forget about Kiba, the Kendo club is going to start changing in a little while and you don't want to miss it, do you?" D said in a playful tone.

"Oh, yeah those breasts and those legs." Matsuda monologued while he started losing himself in his own little world.

"Hey, are you coming Issei?" Motohama asked.

"Nah, I'm not in the mood today, I will wait you in the 'safe' place we agreed. Have fun." D replied.

…

The 'safe' place

"Oh, look at you guys judging by your state you got caught right?" D commented in an almost cheery tone as he saw his perverted friends arriving at a bruised beat up state.

"Hey give me a break, just cause they never managed to corner you when they caught you peeping you shouldn't be treating it as it is nothing." Matsuda complained in a weird voice due to his bruised face.

D or Issei had been caught many times peeping as well but every time he was chased he either had easily outrun his pursuers or climbed the fence and escaped them.

"Now that you mentioned it, with your physical abilities you could have easily become the ace at one of the sports clubs, but you haven't even tried to join them, why?" Motohama asked.

"Not, interested I'd rather hang with…" D started to say sensed someone watching him.

As he turned and looked up at the window of a school building D saw a beautiful girl with flowing crimson red hair and blue-green eyes looking at them, and then waking away from the window.

"Rias Gremory her measurements are B98-W58-H90 cm she is the president of the occult, club transfer student from abroad." Motohama informed with an informative perverted tone in his voice.

"Just look at those things!" Matsuda added in a dreamy voice. "99 not 98, and she has beautiful not just amazing breasts." D corrected with a naughty smile on his face.

…

Occult club room

"Who was that boy?" Rias asked Akeno Himejima a girl with long black hair in a ponytail, white skin and violet eyes.

"Which one?"

"The one with the spiky black hair."

"Well he is in the class 2-B, if I remember correctly his name is Issei Hyoudou. Why do you ask?"

"An, nothing I just wondered who he is that's all."

…

On top of a bridge during sunset

D-Issei was yawning and lamenting the current situation.

"I enrolled in a school with quite a few probably demonic presences and nothing 'supernaturally' interesting has happened, if it wasn't for those two I would have already left."

Suddenly D felt someone non-human coming to his direction. It was a pretty girl with long black hair.

"Excuse me, you are Issei Hyoudou from Kuoh academy correct?" She asked D politely.

"Yeah, that's me."

"I just wanted to ask you a quick question…" She paused while her face had started to become red "…Are you… are you seeing anyone." She asked with a voice filled with shyness.

"No, and to make this easier for you if you are asking me out the answer is yes, I would love to go out with you." D said and gave the girl a smile.

"Ah, really… ah…my name is Yuuma Amano so…are you free this Sunday afternoon?"

"Yes I am."

The two exchange phone numbers and set a place and an hour for the date and then they parted.

'Things are finally starting to move.' D thought while he pretended not to notice the tiny girl, with the white hair who was wearing Kuoh academy uniform and kitty hairpieces, who thought that was following him in secret.

…..

Sunday date's meeting place

D was wearing a light black jacket with a red shirt underneath and black pants and was waiting patiently for his date.

"Here take a flyer." A girl wearing a red dress with bat-like wings for decoration on the shoulders and the back said to him while giving him a flyer.

'Couldn't this bat have used a less obvious transformation?' D thought while the girl-bat was leaving. 'And what's this all your wish will be granted.'

D wasn't an expert on magic and circles but he was certain that the magical circle on that flyer was a summoning circle.

"Issei hey."

D turned his head and saw Yuuma. Walking towards him.

"Oh, hey Yuuma."

"Did you wait long?"

"No, I'm just glad you came."

D-Issei and Yuuma started their date by checking out a bunch of different store, in which D bought a cheap but pretty bracelet and then to a café.

After the café they went to a park for a stroll.

When they reached a fountain Yuuma said "Can I ask you a question? In honor of our first date there is something I would like you to do." She said while going closer and closer to D.

"Sure, you can ask me for whatever you want."

"Would you die for me?" Yuuma said in a changed voice with an ominous look at her face.

"What?" D said in a confused tone.

"I want you to die for me." She said to his ear.

"Gua ha ha ha." She started laughing while black wings sprout from her back and her clothes disappeared into and an evil revealing leather outfit appeared in their stead.

"AAAAH, just please tell me why before you kill me." D said in a scared tone.

"Hmm, you could just blame god for giving you the sacred gear." She replied while a lance of purple light was formed into her hands.

Yuuma then proceeded to stab D-Issei in the stomach but D effortlessly avoid it and with a quick movement he pummeled a dumfounded Yuuma to the ground with one punch.

"I will give you a 20/100 for a good performance in your assassination attempt, but seriously you didn't stand a chance against me."

"Now to get back at you." D said with a fiendish smirk to his face.

…..

A few minutes later

D was walking away from the fountain.

"Sigh." "I wish I knew what was all that about."

"Wait a minute." He then took the flyer with the summoning circle and focused his mana on it to forcefully activate it (instead of using the strength of his desire).

The flyer shined and it turned into a big magical circle from which a beautiful girl with crimson red hair and huge boobs appeared.

"Why am I not surprised?" D commented Rias arrival in an amused tone.

"Huh, you are okay?" Rias asked in confusion.

"Yeah, sorry to disappoint you miss Gremory."

"If that is your real name miss demon." He added in a more serious tone.

"How do you know?"

"You appeared out of a magical circle…

…And you are just too beautiful." Rias blushed on the compliment.

"Now I have a ton of questions for you, and I'm guessing you want to go to the occult research club to talk since it is your headquarters, right?"

"Yes, you are quite informed." Rias said as she regained her composure.

"More deductions than anything else." D said as they made their way to Kuoh Academy.

…..

Kuoh Academy occult research club room

The club room interior was a wood-paneled room with Victorian-style coaches and chairs along the walls.

Inside there were waiting a handsome young man with short blonde hair and grey eyes who D recognize as Kiba Yuuto, a third year with long black hair and violet eyes and Koneko Toujou a petite first year girl.

"This is Akeno Himejima vice-president of the club, Kiba Yuuto and Koneko Toujou."" Rias to introduce everyone.

"Hello, my name is Issei Hyoudo nice to meet you everyone." D said with a smile.

"Would like some tea?" Akeno asked.

"No, thanks."

"Now to business." D said in a serious tone. "Who was the girl with the black wings, what is a sacred gear and what is it that you want from me, cause otherwise you wouldn't give me this." D showed the flyer.

"This will be a long explanation and maybe difficult to believe but everything I will say to you is true."

…..

At the park near the fountain

At a part of the grass where the ground oddly seemed recently dug, the dirt began to stare.

Suddenly a hand clad in black leather came out and then a head belonging to 'Yuuma Amano'.

"I swear… I will kill… that bastard … even if it's… the last… thing… I will ever… do!" 'Yuuma' said in a raucous voice filled with hatred.

And cut.

Author's note: this is it folks my first crossover with my oc character who I already establish as a Disgaea character i may make more with him as the main character and I promise I will explain more about his powers in the next ch. And I'm gonna an unexpected guinea pig for it. Leave a review if have smth nice to say.