Today was roughly a week into the school year so I suppose a new teacher joining right now was going to be a suprise.

"Right, I suppose the register comes first." I walk to my desk and rest back on the chair, kicking my feet up.

"Asia?" I start and the blonde girls head shoots up.

"Yes!" She squeaked and I smiled.

"No need to be nervous."

After a few other names.

"Issei?"

"Here, Sir I have a question."

The dark haired boy stood up seemingly not asking for permission to ask his question.

"Are you related to Rias?"

Of course someone as idiotic as him would have to go and notice.

"Yes, Rias is my sister. Hence the bright red hair." I put my hand threw my locks to prove my point.

Issei sat back down and I continued with the register without anymore interruptions.

"Now that the boring stuff is over with, I'd like to get to know you lot a bit more. So I'm going to go down the register again, and when your name comes up I want you to tell me something interesting about yourself."

I stood back up and sat on the front of my desk. "I suppose I'll start, I'm only 18 years old and have been homeless for a lot of my life, and I'm really not qualified for this job."

Everyone let out a gasp of panic and I chuckled.

"I'm joking, slightly, I'm qualified but I was homeless. 'Kay then, Asia you first."

She stood up and addressed the class.

"I'm a strong believer in God, and I worship him dearly." However as soon as she said that she grasped her head.

Ah, she must be a devil... she's not a fighter for sure, so a bishop... probably Rias'.

She sat back down and the rest of the class went along, nothing in particular interested me. Three kids all said they liked breasts and I almost shot them.

Then I remembered I wasn't aloud to tell people who I am and held back.

I had no time for perverts, I remember this being an all girls school so there only being 3 boys in this class was usual and the girls obviously hate them and they don't care.

I left them to talk to each other for a while before the bell went, signalling break time.

Nobody waited to be dismissed and all grabbed their bags and sprinted out of the door.

Only one person was left behind.

"Um... Mr Gremory." Asia cane up to my desk.

"Yes." I stood up stretching my shoulder ready to leave myself.

"... I'm sorry about earlier, making you come and sit with us... you're just so young and-" I put a finger on her lips and she panicked unsure what to do.

"It's fine, do you know where Rias will be, I'd like to see my sister." She nodded her head quickly and I removed my finger.

"I'm actually part of her club, the occult research club." She beamed and I couldn't help but smile too.

"Lead the way." I picked up my bag and we set off.

~~~~~~

We got to the old school building and headed along the corridor. Toward large wooden double doors.

"Hello everyone!" Asia skipped in calling out to whoever is inside.

"Ah, Asia welcome back." Rias sat at the desk in the back of the room.

The ORC room was simple, two couches and a table inbetween, a few windows the you could see a lot of the school threw.

"Nice room." I muttered aloud and Rias eyed me suspiciously.

"Who might this be?" She asked and Asia was very confused.

"Do you really not recognise me?"

Rias simply shook her head.

"Guess I'll reintroduced myself, my name is Y/N Gremory, the new PE teacher at this school. Pleased to meet you."

I bowed my head low, not really wanting to see Rias' reaction.

For a bit more context, Rias is the only nice member of the Gremory household.

Did I forget to mention that?

I slowly raised my head and saw Rias stood before me... with her hand raised.

*slap*

~~~~~~

"I know you're mad but it stings." I held an ice pack to my now red cheek.

"You deserved that." Akeno said as she stood next to Rias.

Everyone has joined us in the ORC room and have been filled in with whom I am.

"So you're a devil too?" Issei said and I felt something strong pulse from him.

"Yep, though I've kinda been banished from hell... more than once." I scratched the back of my head and laughed.

"... what did you do?" Rias had a scary look in her eyes.

"That's a story for another time, break is about to end and I have a class to teach now." As soon as I stood up the bell rang out. "You best be getting to lessons too, otherwise detention."

~~~~~~

Issei was late.

So I'm stuck in detention afterschool with him.

He has his head down on the table and I'm spinning around on a desk chair.

There was nobody else in the room with us, my PE lesson had gone off without a hitch, and those Devils really had an edge on the other students.

Some girl in first year, a Phenex caught me eye though.

She didn't partially seem like a fighter but she was very athletic, she reminded me a lot of Asia.

A bishop, and a Phenex, hmm...

Issei, however, pulled me out of my thoughts with a random question.

"So... do you have your own Peerage?"

"No, I have never felt the need for one. I'm strong enough on my own." I tapped my fingers in a rhythmic pattern on the table.

"But, Rias is strong and she still has a peerage?" He said and I had to hold back my laughter.

"As much as I love my sister, she's still weak. She's no match for any of the high class Devils that are still around." I saw him getting angry but I held my ground. "Rias is more of a manipulator, a leader, kinda. I'm more of a fighter."

I pulled out my gun and jokingly pointed it at him.

"I know that you're strong though, Dragon Emperor."

Issei panicked and formed the gauntlet on his wrist.

"There is no need to panic kid. I'm an ally remember. Hell I bet that dragon remembers something that I did."

"Y/N, it's been a while. Killed anyone else since we last met?" The red dragon spoke from within Issei's arm.

"A lot, but that's not relevant. Now be quiet, this is detention."

~~~~~~

After detention, Issei headed off first to the occult research club room as I had to finish off some paperwork. Fun.

However I quickly finished up and lightly jogged towards the building and noticed that there was a lot of power within.

I picked up my pace and walked in to a disgusted look on Rias' face and a man up in her face.

"-in time my love."

I didn't need context, I took out my gun and rushed to his side in the blink of an eye.

"I would move away." The man opened his eyes wide for a moment before regaining his composure.

"Who might this be, my lady." The woman in the back spoke up, she seemed to be an envoy of some sorts.

"Grayfia, this is your brother-in-law."

"The name is Y/N, I'd prefer if you didn't make passes at my sister because she clearly doesn't like you. Riser Phenex."

I had chosen to ignore Grayfia as I had a bigger issue.

"Now you seem like someone reasonable." Riser took a step away from Rias and closer to who I assume are has peerage. "Here is a trade for you, my sister for yours."

"Huh." Everyone is shocked by his sudden proposal.

"You heard me right, I marry your sister and you marry mine." He pushed his little sister, Ravel to the front. "So what do you say?"

~~~~~~

Because I could see Riser pawning off his sister.

Let me know what you think, this is my first dxd fiction.

I've not even finished the series yet...

Oblivion, fading out.