{Authors Note: after rereading High School dxd to keep my ideas on this novel of mine flowing. I realized that gabriel has a child like personality and given mars on who he is he will most likely treat her as one. so I'm replacing gabriel with rossweisse and I'm scrapping the acnologia twin (the other oc) and replacing it with 2 octhat'll join his peerage maybe only 1. Tsunade will replace acnologia twin place in harem. I am planning on not having issei be in rias peerage as he will be replaced by 1 of mars kids. the other kid of mars will join sona peerage. thos is what I have in mind for Mars peerage if you think I should add or get rid of one let me know and I'll think about it

Mutated Queen: Grayfia

Mutated Bishop: half angel half human hybrid oc

Mutated Bishop: Bralof Stahlencrod (Skyrim Dragonborn OC)

Mutated Knight x2: Erza Scarlet

Mutated Rook x2: Tsunade

Mutated Pawn x4: Natsu Dragneel

Mutated Pawn x2: Yoruichi

Mutated Pawn: Alucard}

Grayfia squinted her eyes and asks "Why do you want to talk with me and my sister?"

He looked at her, smiled and said "Its because I would like you both to leave the Old Mou Faction and join the Anti-satan Faction."

She blushes at his smile and starts thinking thathis smile was quite cute but shook her head of such thoughts and responded "Why do you want me and my sister to join you? What's the goal of the Anti-Satan Faction any way?"

"The old Mou Factions goal is for the Devils to be the king of the world correct? Well if that were to happen just how much devils would we lose in the process? Our species suffered the most casualties during great war compared to the Angels and Fallen Angels, and we've lost a couple hundred more already due to this pointless civil war." He said as he looked up. "At this rate we'll go extinct."

She looks down and ponders his words abit before looking up at him and saying "Aright me and my sister will switch sides."

He smiled once more and says "excellent, I'll wait here for you to fetch your sister."

She turned around as a healthy blush appeared on her face and thought 'My mou he is cute. His personality is not bad. I like him.' and teleported to her house.

After 15 minutes she teleported back with her sister. He looked at them both which caused Grayfia to ponder where his beard went. In truth he electrified it off when he was waiting for them. "You both ready?" he says as he pulls Grayfia out of her thoughts. Grayfia and her sister nodded as he then summoned his sacred gear and opened a portal to the Gremory house. All three entered the portal soon after.

The portal opened in the Gremory dining hall as mars, Grayfia and her sister step out of the portal. He went to his twin brother office as Grayfia and her sister followed. He opened the door only to find Sirzechs sleeping on his desk which caused a anime tick mark to appear. So he did the one thing he knows, he walked over and yells "Wake up, you lazy twin!" to Sirzechs before wacking him upside the head so hard that the hit echoed throughout the whole estate.

Sirzechs woke up and immediately starts rubbing his head as he says "Ow, what was that for?"

"Well if you werent sleeping then you wouldn't have gotten wacked. Anyway we have a couple of defectors." He says as walks out but not without calling Grayfia to follow him.

As She follows him to his bedroom and when they reach there she blushes and asks "Why am I here and why did you ask me to follow you?"

He notices her blush walks over and cups her left cheek and smiles which causes her blush to deepen and her lip to quiver. He continued to cup her cheek for a few minutes before showing a serious expression and flicking her forehead and saying "As much as I'd like to keep teasing you, I would like to ask you a question." He then reached into his pocket and pulled out a Mutation Queen Piece.

She looks at the strange chest piece and asks "Is that the Evil piece system that I heard about?" In truth the evil piece system had been developed 75 years before the civil war had started by Ajuka as a way to replenish the devil numbers by reincarnation humans to devils. When Serafall and Mars got there sets Serafall asked mars if he could become her queen, he said yes, but when she put her queen piece in his chest his king piece also went into his chest at the same time causing a joint peerage to form.

He looks at her and nods before saying "Yes, this is my queen piece. So how about it?"

She looks at him and says "Yes I'll become your queen."

"Good. A couple of things you should know, I am also a queen of Serafall Peerage. Dont ask me how that happened because I dont know myself and she's also the Alpha. So if you want to pursue me you'll have to ask her." He said as the Queen piece floated in her chest. "Welcome to my peerage, Grayfia."

Grayfia's sister became Sirzechs queen not so soon after. After a few years a go by a massive attack by the Beelzebub which the battle lasted for 3 hours until Mars unveiled his secret Weapon, Mordreds Noble Phantasm, which devastatingly tore through a large group of low and middle class devils and one of Beelzebubs descendants. The Civil War lasted for another 25 years before the The sides called a truce. Grayfia became the head maid and Mars second girl, much to serafalls ire. Who has started a rivalry with the silver haired woman. 5 years had passed since the end of the Civil war and he called the Gremorys and the Sitri's and Ajuka and Fabion to a meeting. He told then that he'll be going on a training journey and that he'll be back sometime in the future. He decided to bring Grayfia with him. He told Serafall that he'd marry her when he returned. So with that he took Grayfia and opened to the Dimensional Gap. He couldn't leave this universe without sealing Ophis first.

He grabbed Grayfia's hand and opened a portal to the dimensional Gap and they both went through it. When they arrived in the dimensional Gap they were surrounded by a bunch of different colors. In the distance they saw what looked like a little girl arguing with a very large red dragon. These two beings are Great Red and Ophis. Using Akatoshs power of space he manipulates the space around him and Grayfia and create a barrier that allows them to be in the dimensional gap without being harmed. He went to the two and said "Hello, I am Mars Gremory and this is Grayfia. I assume you two are Ophis and Great Red?"

Great Red nodded his but Ophis went forward and said "I am Ophis. Now can you help me remove Red from my Home?"

Mars looks at Ophis and says "If this home is about you just wanting peace and quiet then I can help just not in this way but first let's be friends Ophis?"

Ophis smiles and says "You are my first friend. What do you mean you can help me but not in this way?"

"I have an ability that allows me to seal dragons in an infinite amount of space, but theres a catch. At the same time I can use the dragons abilities that I have sealed in the spaces. Do you want to be sealed in one?" he asks with smile.

Ophis seeing his smile blushes slightly and nods her head before saying "I dont mind you using my powers just seal me up." He seals her up in the last space available in his sacred gear. He then wonders 'I wonder which universe I should go to first.'