1 year later

Issei was currently on a bed covered in dried blood still in the mystic library he has been in a coma for the last 1 year, Deimos still floating was confused and still bewildered

Deimos: what's wrong he hasn't shown any signs of movements he is breathing and his heart his beating but is brain signals are all messed up, he has been unconscious for the past 1 year

He shook his head

Deimos: his family are truly wicked even I as the son of belzeebub is disgusted by them they didn't even bother to check up on him

He sighed,

Deimos:if it was someone with this opportunity to obtain my legacy destroying their clan or killing those who wronged them would be the first on the list

Issei body shook a little which caught the eye of deimos

Deimos:this is the first movement he has made since he entered this vegetative state

Issei hands kept on twitching

Deimos: Issei you can do this, you want to prove them wrong right you want to be a super devil -transcendent right and help your real older brother

Issei eyes twitched too

Deimos: c'mon kid get up now you can do this

Issei eyes finally opened but they were completely different, his right eye was amethyst and his left eye was golden in color, his pale skin was smooth and lively, his pale red hair was fully crimson even more than a gremory

His eyes were heterochromic

Issei: what happened where am I?

Deimos floated infront of him

Deimos: you're alive aaah thank god of the bible

Issei eyes blinked several times

Issei: I remember now I've been exiled by my family and I drank some stuff

Deimos: yes you survived, You look dirty go take a shower and wear a new set of clothes maybe after that we could do some tests

Issei: okay to be honest I feel great, like my body feels awesome, the usual pain I feel is gone thank you so much master

He said with a bow

Deimos: no worries Issei we'll talk later

He felt dizzy but managed to stabilized himself, after 30 minutes he came out

He smiled

Issei: I feel awesome my body feels like my own

Deimos: you look great now let's do some tests

Issei stood on a platform and some laser lights scanned his body, causing himself to hold on since he felt ticklish

Deimos: it's done just take a sit I'm going to examine if there's any abnormalities in your body

He patted his head before leaving into a corner

He scanned the results and he was stunned

Deimos: his body has not just been restored every single abnormality has gone and his body even looks stronger

He smiled but that smile froze

Deimos: what the hell is that

On the holographic picture a crystalized orb on his abdomen

Deimos: please don't tell me this is... it's a ...no it can't be a Mana core how and a Mana vein and they are both supreme grade

He almost fainted

Mages have a Mana core that houses their Mana and mana veins that helps circulate it around the body and helps in powering spells

Common Grade: This is the most basic and widely available grade of Mana Core. Mages with common-grade Mana Cores usually have average magical abilities and limited potential. They can cast simple spells and perform basic magical tasks but may struggle with more advanced or complex magic.

2. Uncommon Grade: The uncommon-grade Mana Core signifies a step above the common grade, indicating a slightly higher level of magical potential. Mages with uncommon-grade Mana Cores are capable of casting more versatile spells and have a greater affinity for certain types of magic. They can delve into intermediate-level magic and may start specializing in specific magical disciplines.

3. Rare Grade: The rare-grade Mana Cores are considered quite valuable and are possessed by mages with significant magical talent. Mages with rare-grade Mana Cores are often highly skilled and capable of wielding more powerful magic. They have a larger reserve of mana, enabling them to cast spells of greater magnitude and complexity. They might even have an affinity for rare or advanced branches of magic.

4. Epic Grade: The epic-grade Mana Cores are extremely rare and coveted by mages. Those with epic-grade Mana Cores possess an unprecedented amount of magical potential. They can tap into vast amounts of mana and are capable of casting spells that can rewrite reality itself. Their spells are immensely powerful, and they can excel in various magical disciplines, often displaying a mastery over multiple areas of magic.

5. Legendary Grade: The legendary-grade Mana Cores are the pinnacle of magical power. Mages with legendary-grade Mana Cores are virtually unparalleled in their abilities. They possess an immense reserve of mana, allowing them to cast spells of incredible scope and magnitude. Their spells can reshape entire landscapes, control the elements at will, or perform extraordinary feats of magic that go beyond mortal comprehension.

With legendary grade the Mana in his Mana core and his Mana veins would be immense capable of using very powerful spells

Even the likes of a super devil would only have epic grade devil core

I've hit the jackpot, now all we have to do is check his attributes

He came back checking on Issei who was busy reading a book

Issei: am I going to be okay master you look shocked and scared

Deimos: monster you are a monster...damn

His body trembled

Deimos even had the urge to bow to him,

Issei: are you okay sir

He asked tilting his head cutely

Deimos waved his hand and a holographic image appeared showing a list of elements

Zyra: lord Deimos i have measured his mana which isn't Mana to be honest and able to tell is attributes beware this maybe shocking

Name:Issei ' gremory '

Age: 8

Race: aether devil

Aether core: legendary grade

Aethr vein: legendary grade

Magic attributes

Fire

Water

Air

Lightning

Earth

Soul

Time

Space

Deimos looked at him like as if he was a freak even floating some steps back

Deimos: shouldn't it be Mana

Zyra: no there is no mana in his body it is filled with aether and little demonic power

Deimos looked flabbergasted

Deimos: how

Zyra: I've analyzed his genes, it seems your father and Lucifer fused aether with the genes of the female used to create the gremory clan

Deimos: but he didn't tell me and why didn't it show in the gremory line it's not possible aether is only a bit different from divine energy

Zyra: your father and Lucifer sealed it away to appear in later stages of the devil race if it had been shown during the era of the previous devil kings other factions would have wanted to destroy the devil race in fear of creating devils that can become gods and cause war with other factions since devils weren't seen in a good light then and even now

Zyra: your potion of ascendance had done the trick, to be honest with you master the potion fixed his genes which undid the seal and allowed the aether to flow through his system and remodel is body

Deimos: oh shit I'm dreaming this is definitely a dream

Zyra: I assure you you are not dreaming sir

Issei:uhm excuse me what's aether

Zyra: Aether magic is a form of magical practice that taps into the are magic energy known as Aether. Aether is often seen as a cosmic or ethereal force that permeates the universe, connecting everything together. Aether magic harnesses this energy and uses it to cast spells, manipulate reality, and interact with the spiritual or metaphysical realms.

Issei: can you compare it to demonic energy

Zyra:of course not, it is basically not too different from divine energy

Issei: awesome

Deimos turned to Issei

Deimos:' when I browsed through the new devil kings and I discovered about the two super devils i thought they were the future of the devil race I guess I was wrong I'm must nurture him he is basically the chosen one '

Deimos ruffled his hair making Issei giggle

Deimos: prepare yourself my student I'm going to train you and make you the most powerful devil of all time

KNOCK KNOCK

Deimos: it seems we have guests go and check and please be careful

Issei: ok master

Issei walked upstairs and opened the door

His eyes widened in shock

It was zekram bael

Issei was startled but later bowed down

Issei:lord bael what brings you here

Zekram's POV

So they just left him there, no servants no maid and the house looks old I am terribly disappointed at sirzechs and the rest of the gremory clan

As soon as the door opened, Issei could be seen

Wait this Is Issei

I checked his profile he is supposed to be sickly pale with dull red hair and dull turquoise blue eyes but is eyes they are completely different and what is this power I'm sensing it's not demonic power it's something else it feels so powerful

I smirked inwardly

Zekram:' I was right hmph I'm always right I must help him '

Zekram: ah Issei just call me grandpa

He smiled before ruffling his hair

And he's actually adorable

Issei: grand...pa

Issei: Grandpa

Zekram: I came here to check on you the gremory clan doesn't care about you even though you showed zero potential they could have just sent you to the human world same with your cousin and lived there not continue to treat you like trash but it seems you are better than the picture I've seen

Issei: haaa no worries grandpa I don't really think of such things wait... what happened to onee-chan

He looked worried

Me: the new lord bael banished them to the countryside of the bael clan

Issei: how could they do this it was fine with me but..

Me: no worries thanks to my influence they are doing well unlike here

My face turned serious

Issei: grandpa you want to come inside?

Me: I'm in a hurry don't worry I wanted to see how you are doing Issei I see potential in you I hope you won't use it to bring suffering to the devil race

Issei: why does everyone keep on saying that I only have 3 goals

1 become stronger

2 help my onee-chan become the devil king... legally by the way

3 and also become an adventurer

Not a bad goal he really cares for sairaorg

Me: by the way I would want you to protect the devil race If you truly reach your goals

Issei: in order to help my onee-chan become a devil king I'll also have to do that too no worries

Me: would you one day go back to the gremory clan

Issei: not interested actually they could go to heaven for all I care and we'll I do plan on giving my ' father ' a scar and possibly PTSD if that's okay

I couldn't help but laugh, as long as he doesn't destroy the whole gremory clan infact killing zeoticus wouldn't be a problem as long as he does it well

I handed him a communicator

Me: use this to contact me when in time of need and I'll use it to check up on you also your older brother sairaorg

Issei: thank you grandpa

I nodded before forming a magic circle and disappeared

My POV

I ran back to the library

Me: master so what do we do now?

I asked in a curious tone

Deimos: well then Issei I'll have zyra write you a good training session as a battle mage that you'll run for the next few years I wouldn't be surprised if you managed to become a Satan class devil at your teenage years

Me: well then let's go

I raised my fist into the air

Zekram's POV

I went back to my study room and sat down, my knight came in and bowed to me he was one of Arthur's knight before I met him centuries ago

Knight: you've arrived did anything worthwhile happen

I couldn't help but crack a smile

Me: when I met him I felt power, power that would one day suppress me

Knight: how could this be

He wouldn't dare doubt his master

Me: well then it isn't demonic power or mana but it's more powerful than both it has this otherworldly feeling like I can't explain and his potential something that was nearly non existent was now as vast as the ocean even stronger than sirzechs when he was his age

The knight's face paled

Knight: I can't believe I doubted you

Me: happens to the best of us like I said before sirzechs and zeoticus infact the whole gremory clan are fools, brainless fools well then sooner or later they'll reap what they sowed now both Issei and sairaorg are now under my wing

I smiled before a taking a sip of coffee