A normal man would wait where I am in anticipation, he would be happy as today is meant to be one of my happiest days in my life but am I happy? Only to a degree. I'm stuck here standing, waiting in boredom in a restrictive tuxedo in front of everyone in the damn hall. I didn't want to wear the jacket but I have to, supposedly. Today is the day I am to marry Rias for the good of the Underworld … and ourselves. I'm happy for the most part but women are way too slow at getting dressed plus the dress probably has some strange stuff on it that makes it remarkably hold to zip up or its way too tight.

Just thinking about it to myself alleviates some of the boredom, I mean her crimson hair coupled with an immaculate dress is something to see. The first thing that came to my mind was a bride stabbed to death and the crimson being her blood, the moment that came to mind I made a heavy sigh surprising everyone in the hall and I knew, I knew that second that I had jinxed this wedding. Not that you could call it a true wedding in all honesty because other weddings have a section dealing with prayers and the like but as devils, that'd be a pain … literally. So I am winging this as per Guy's instructions, supposedly he was to teach me about it all but he realised a week or so back that it wasn't the same as a human wedding so I should wing it. Despite this fail on both of our parts, I don't regret the planning. I just regret not trying hard enough to get out of this jacket.

Ravel wasn't very happy that this day had come, and my body had felt it the day before. She got really physical with me throwing all sorts of fire at me causing me to spend a good portion of the day regenerating it off. She is remarkably strong for her age, she is probably on par with Raiser through power but in the end they'll be equal as Raiser has a good amount of stamina although it wasn't built up for fighting.

I was broken away from my thoughts but not what held my gaze by the sound of heavy doors opening and sounds of admiration fill the room behind me. The sound of heels clicking against the marble flooring got slightly louder by the step coupled with people shuffling in their seats as they watched the person who could only be Rias walk down the aisle to stand by my side in front of the person who would conduct our wedding which for some reason was Serafall Leviathan. I am rather confused as to why she is doing it and why she wanted to.

When the clicking stopped, I looked to my side and saw Rias in her wedding dress and while she, without a doubt, looked incredibly beautiful my gaze was captured by something else. A long strand of fabric that was behind her, it was too long to be worthwhile but what confused me most is how it garnered more of my attention. I eventually turned back to look at Rias and gave her a wink before smiling and looking forward again.

…

I hadn't been to a wedding before, even when I was a child but i'm thankful I didn't. The person conducting it goes on forever, mindlessly droning on about stuff that is probably repeated stuff in a different format or different word itself. I'm young, my attention span isn't really that great. My mind wandered and it did so frequently, between conversing with Efreet and Sylph to wondering how quick this would end and the after party happening. After all, Chichi-ue and Haha-ue are allowing me to drink so I obviously plan on getting wasted. Whether I pass out before we consummate the marriage later or not, I don't feel like I care. I feel that with me and Raiser being completely different, we took certain emotions and feelings and he took the one with a desire and lust for sex. It never really bothered me or interested me really.

But I was still listening to what was being said, paying attention to a little under half of it merely listening out for the key words and if anything would be directed at me which luckily there wasn't. Though just like a Christian wedding, there was a question directed towards the audience, our friends and family.

"Is there anyone attending today that does not agree with the marriage between Rias Gremory and Reon Phoenix? If so, speak now."

Then I waited for an inevitability and surprisingly to me, it came later than expected. A full ten seconds later it came.

"I reject!"

And I didn't care because it was Raiser being his usual self. He would be dealt with after the wedding and party but if anything was to happen during the wedding then it is mine to deal with, frankly despite not really caring I was feeling a little pissed off. It's normally a reaction from being near him but today, it's not. It's something more.

"Leviathan-san, shouldn't you be continuing? No-one said anything."

"Don't ignore me Reon!"

As I turned round to look at him I saw that he was about to send a fireball my way and a single thought came to my head. I quickly took my coat jacket off and laced it in magic. Raiser sent the fireball my way and I threw the jacket onto it, ridding myself of the jacket and destroying Raiser's fireball in the process. I felt happy internally at the loss of the jacket, more so than I should have been.

I let out an exasperated sigh before talking.

"What is it Raiser-teme?"

"You! You act all high and mighty and are a goody-goody. You even went and stole the girl who was meant to be my wife!"

"High and mighty? That's you. I didn't steal anything from you, Chichi-ue was the one who decided to change it. This engagement started off being a solely political between the youngest daughter of Gremory and the youngest son of Phoenix, we are twins so it doesn't matter which of us took the place. Rias here is just lucky you had a twin who isn't a arrogant pig who treats every woman poorly."

It seemed like my words had pissed Raiser off as he was in the centre of the aisle unfurling his flame wings with a scowl forming on his face.

"Reon! I challenge you to a fight."

….Eh?

"What? Why?"

"To shove it in your smug face, to prove to everyone that you aren't better than me in the slightest." Raiser then got quiet as his scowl was exchanged for a smirk. "Also, it'll show father that the Gremory whore is rightfully mine."

Whore, huh? That sends all my reasoning out of the window.

I start to walk towards Raiser at a slow pace, my eyes locked straight on him and devoid of emotion as the black flames appear around both of my hands fluctuating erratically. As I get within a foot of him, I ball my right hand into a fist and when I get in front of him pick it up and send it straight into his no-longer smirking face blasting him off of his feet.

"Raiser-teme, I've put up with you day after day. I've been embarrassed my whole life having such an incompetent twin brother. You also have an incredibly foul mouth that needs to be shut before you speak any more slander and lies."

My voice came out unlike my normal voice but was deeper and somewhat distorted. My eyes had become focused on Raiser in front of me, firmly seeing him as an enemy and my prey to kill.

"Gneuax Manifest."

My body was coated in a thick black flame-like aura that was quickly sucked up into my own body forcing my orange flame wings out of my back. Then from the connection in my back the flames started to darken becoming as black as the flames around my fists. My hair completely blackened from it's original golden blonde, and my eyes went from a dark blue to a complete black.

Then a black bow forms in my hand, a bow that spans 23 inches from top to bottom. Golden tribal markings adorn the upper and lower limb. The bow itself was a modern day recurve bow and the aura it emitted was exemplary. Putting my aura to the side, the bow itself was releasing an aura bigger than Raiser's combining it with mine amplified it and increased it's area of effect. It wasn't harmful though to anyone other than Raiser, he was the one who incured my wrath so he is the only one to be subjected to it.

"Guy! I'm borrowing your holy ice sword."

I shouted out towards Guy but kept my eyes on Raiser who was holding onto his jaw in pain with one hand.

I pull back the string on my bow and one of Guy's holy swords of ice from his sacred gear appears where my arrows normally would be sitting on the arrow rest and nocking point. I aim towards his feet and let go releasing a barrage of the ice swords directly at him. The swords collided with each other upon hitting his feet and exploding into a thick layer of ice which secured Raiser's feet to the ground.

My body then felt a flush of fatigue as my body reset back to normal, bringing my orange flames, blonde hair and dark blue eyes back but I still held a steely gaze on Raiser as the holy ice continued to hold his feet in place sending the light amount of holy energy up his body burning him. The bow however was engulfed in my orange flames and dissipated away.

"Raiser-teme, she is not a whore. She is Rias Gremory, the lovely girl who will be my wife very shortly. If you continue to bitch and moan about things that are ultimately your fault, then I will personally and happily put you out of your misery. I suggest you either shut up or leave now."

I clicked my fingers on my right hand and the ice around his feet crack apart and melt away into nothing. Raiser just clicks his tongue and leaves the room after gesturing to his servants to follow, luckily the girls were much more polite than he was and bowed to me individually on their way out as his Queen, Yubelluna, actually apologized to me.

I slowly walked back to the front of the hall as the whole room was quiet, my expression had softened and with Raiser gone so was everything else. I no longer felt pissed off and when I took my place beside Rias I smiled at her allowing Serafall to start again from where she was so rudely interrupted.

…

Everything then went on smoothly after Raiser left. It was calm, serene and enjoyable. The best thing was that Rias became a Phoenix.

There is the entrance of Gneuax in this story. And as you can see, it gave Reon the ability to use a sacred gear but it is limited to his allies.
As much as it makes Reon strong there is a downfall. Gneaux could be compared to his ability as a Super Devil but it really isn't and Reon isn't a Super Devil.
When using Gneaux, his demonic abilities and powers dramatically increase while allowing him to use his allies abilities but at the same time it increases his weaknesses and resistance. His only resistance is just an amplification. Gneaux is the eater of fire so any being that has an affinity to fire is weak to him even if they don't use fire against him, e.g. a dragon. His black flames eat up other flames. Now for the weakness, its just an amplification of holy magic. To put it into gaming terms, he receives double damage from any attack that contains a holy element but this is restricted to when Gneuax is in effect.

Even so, Gneuax is still pretty strong and therefore has a high restriction on him. Even after fully unlocking it here he can't use it often or on a whim, his emotions have to be flared still at this point but he can summon it normally to a degree, the flames around his hand for an example. I can say now that he wont be able to use it properly till at least the 7th volume. You gotta remember now that we haven't hit first volume yet and we still got around 7-8 chapters before we do.

Next chapter will be in the human world and the first day of school for the girls. Ciao.