Introduction to everyone

Everyone eyes widened hearing this. Hyoudou Issei, the pervert student that always act idiotic in school and give them goofiy smile is the descendant of the Maou?!

"B-B-Beelzebub?!" Rias stutter when hearing this she then suddenly remember the memory of Ise beating Raiser with cold blood. Beelzebub is Maou that been known cold and show no mercy on their opponent, is really lucky that Raiser didn't get killed by his hand

"I am Gremory. I half human half devil" said Ise with neutral voice and face

"H-How?! Is impossible! Furthermore you are Sekiryuutei! You descendant of Maou and also the Sekiryuutei! Its like a God give Devil his blessing!" Yell Rias, Ise didn't respond her comment instead he turn to Asia and observe her make the nun devil blushing

"... Asia Argento... Are you still believe in God?" Ask Ise with serious tone. Asia taken back by that's question, she low her head and have sad expression

"Y-Yes.. I still believe.. Although i can't pray anymore" answer Asia with sad. Ise frowned and then turn to Rias

'I'm sorry then Rias, but i can't told you the reason'

Rias jump in surprise when hear some voice in her head

'Is that?'

'Yes a telephaty. I will told you in time why' reply Ise through his mind

"Buchou?" Akeno called her seeing Rias surprise expression

"I-I'm fine Akeno! It just.. It really take a lot for my brain to proccess it" said Rias as she sit in sofa and leaned

"Ara ara i also think same fufufu to think Ise is descendant of Maou" said Akeno

"Indeed.. It is very surprising" said Kiba

"B-But it doesn't matter! Ise-san is still Ise-san!" Added Asia as Koneko nodded in agreement

'These guys... Heh i must admit they are loyal servant... And friend' thought Ise as he smiled

"Thanks you guys but if you guys can i want my identity as descendant of Maou is keeped as secret" said Ise

"Eh? Why? I mean you are very strong. So why you want to keep your identity? You can gain your own Evil Piece if you want" Ask Rias

"Nah i don't need Evil Piece i can single handed kick everyone by myself. And for my identity you should know that you going to fight other Devil later on Rating Game. Deception is the greatest weapon. By keeping me as secret you can say you have secret weapon i will try my best to refrain myself from... Killing someone who piss me off" said Ise

"But you can create your own harem using Evil Piece" said Akeno. Everyone stare at her with strange expression while Ise stare at her blankly

"Seriously? Is that what Evil Piece for? If that true then is more reason for me to reject it.."

Everyone jaw drop to the ground. Issei. Issei just reject the offer for HAREM! The world must be gone mad!. Rias was the first that recovered from her shock

"I.. I see... Well then may we kno how strong you are?" Ask Rias

"Mmm... Well at least i'm stronger than Satan itself" answer Ise bluntly

"What?! Seriously?! You that strong?!" Reply Rias

"Rias. Satan is been killed by Heavenly Dragon and i am Sekiryuutei. Not to mention that i also descendant of Maou. What make you think that Satan can defeat me?" said Ise proudly

'Actually i want to say that i am stronger than your brother but nah! I will safe it for later fufufu. I don't know how strong am i if Ddraig able to combine his power with Ddraig from this world. Maybe i going to become on par with Ophis! Ooh can't wait to tell this to Vali wonder how he going to react' Thought Ise with glee as he began to giggle like mad scientist

'This new Ise is also very strange' thought everyone at the same time as they see Ise start to laugh like mad man

[Partner i also happy about that but please know we are not alone now]

"Ah?" Ise then turn and see everyone stare at him like he is madman

"Sorry i just remember about something" reply Ise sheepisly while rub his back head and then he clear his throat to get everyone attention

"Anyway does anyone know where Hyoudou Issei life? I need to go home since is already late"

"Umm Ise-san you and me life in the same house" said Asia with red face make Ise blink

"Ah i see, i'm really lucky then to life with such a cute girl like you" praise Ise with genuine smile make Asia face redder

"Umm umm!"

"Please take care of me well" said Ise. Asia only nodded and then both of them leave, when seeing this Rias frown a bit see her Ise is taken away

"Jealous buchou?" Tease Akeno

"W-What?! I-I'm not!" Retort Rias with blush

"You got to be kidding me! All of his room is filled with PORN?!" Shout Ise as he look around Hyoudou Issei room

"That's it! Is time to burn all this thing!" Said Ise as he show evil grin and a dark green flame appear on his hand

Few minute later

"Done! Now is time to talk with Ddraig again" said Ise as he go into bed and start meditation

'Ddraig? How is going? Have you talk with other Ddraig?'

[Already partner. He and me merge into one since he says it will be too troublesome. But don't worry we still can be separated if we want]

'Great! So how strong am i now with you two become one? And How Hyoudou Issei condition?'

[Well right now is oblivious you stronger than Vali. Your Balance Breaker still has same form except your Juggernaut over drive. When you use this you will transform completely into me but the size will be doubled which mean you going to be the largest dragon. And if you use Juggernaut Drive you will become humanoid crimson dragon with overall measure around 40M let me send you the image(imagine Phantom Blaster Dragon with but his color is crimson). And your Boost not going double your energy but Quadraple it. You also get more close into become Dragon/Devil which mean your demonic energy become more potent and strong than before. Now your body become 60% Devil, 10% Human and 30% Dragon]

'Sweet! Hahaha! When i can use this new power? And also when i can get Hyoudou Issei memory'

[You can use your new body in 4 dayfrom now and for the memory you will gain his memory since he enter highschool tomorrow. Listen partner whatever happen please don't blow this country if you can just blow some mountain]

'... Is really bad isn't it?'

[You have no idea partner. You have no idea. By the way i suggest you wear your spy accesory to limit your power. You don't want this entire city explode because you snapped tomorrow right?]

'*sigh* whatever i will wear it then tomorrow. When Hyoudou Issei going to be awake?'

[Hmm maybe in 2-3 days]

'Fine then. I going to sleep now please work on it Ddraig you can sleep all day if you done. I will bring some dragon fruit into mindscape when i visit you later'

[Sweet! Thanks Partner! You better rest tomorrow going to be long day trust me]

'Okay! Night Ddraig'

With that Issei Beelzebub sleep with peaceful and wondering what he should do tomorrow unfornately for him tomorrow he will wake with VERY bad MOOD!

Next day

And just like what Ddraig says we found our hero in class with VERY bad mood. Ise is furious, no he beyond than furious. Seeing his other self life like a trash, pervert and being mauled though he also proud that Hyoudou Issei is a kind person and always protect his precious person but he still furious and shame on his other self

"I-Ise?" Call Matsuda

"WHAT?!" Ise yell to him with glare that can make everyone cower in fear as he unconsciously release some demonic energy make the window cracked and some of them broke. Everyone shocked heard Ise just yelled like that especially Matsuda. He immediately pale and shooking his head then turn around

'Fucking trash! I really mad! Is take everything i got to not blow this entire country! I will blow Mt Himalaya later!' Thought Ise furiously

"Hyoudou Issei! If you want to yell around then you better out from my class!" Yell the teacher

"FINE!" Ise yell back and grab his bag then leave from the class make everyone eyes went wide and wondering jut what happen to Ise?!

"Gahh! I will erase everyone memory about me being pervert!" Shout Ise with angry as he walk toward the old house

"Hyoudou! Are you skipping class?!" Yell some person. Ise turn and see s a young man with short blonde hair and grey eyes.

"No. That's bastard who teaching me ask if i want to yell around then i can out from his class so i out! Who are you?!" Ask Ise as he observe the man

'Piece of Vritra soul. That mean he Sacred Gear user and Reincarnated Devil' thought Ise

"I'm Genshirou Saji Secretary of Student Council! You can't just say thing like that, go back to your class and apologise to the teacher!" Yell Saji. Ise seeing this grinned like evil person and cracked his knuckle

"Well i was on bad mood. Maybe you can relieve me a little" said Ise as he smirked but he quickly turn around when he felt someone behind him and grab the person throat

"Hyoudou Issei. I suggest you remove your hand from my throat" said the young woman around the same age as Rias with black hair styled in a short bob cut and violet eyes. She wears a pair of red glasses and the Kuoh Academy girls' school uniform with cold voice

'This girl is Souna Shitori. But seems it just disguise name, she must be Sitri then' Thought Ise

"Hyoudou! Remove your hand from Sona-Kaichou!" Saji yelled as he charge toward Ise. Ise didn't answer as he throw the Sona to Saji. Make Saji eyes widened but Sona manage to float and land before she crash into Saji

"Hyoudou! You bastard! I will kick your ass for try to hurt Kaichou!" Saji about to charge but Sona rise her hand and stop Saji from charging as she began to rub her neck

"Stop Saji. You won't stand a chance against Hyoudou" warn Sona

"What are you talking about Kaichou?! I sure i can take him down!" Protest Saji

"No you can't. Saji you take 4 pawn to become Devil while Hyoudou is take 8 pawn" warn Sona with more serious voice

"Y-You serious Kaichou?" Ask Saji in disbelief as he stare at Ise who glare deadly to them

"You better teach your servant to not boast in someone business Sitri. If one of them try to disturb me again i can't guarantee they going to life" threat Ise as he glare to Sona eyes

"Is that a threat Hyoudou?" Threat Sona back. Sona knew something is wrong with Ise. Hyoudou Issei will never threat woman just because he was on bad mood. This Ise is different from the Ise she knew. The fact that he just grab her throat and throw her away with rude is a proof of what she thinking

"Are you deaf or what? Surely you can hear it clearly" mock Ise. Sona release her energy as she about to retort

"ISE!" Rias shouted from far as she and Akeno approach them make Ise, Saji, and Sona turn and see them

"Hello Rias. I was about to teach some High-class Devil a lesson" said Ise with smirk

'He didn't call Rias "Buchou"? What is going on?' Ask Sona in her mind

"Ise i know you must be.. Upset about him. But please don't relieve your anger to them" plead Rias

[She right partner. You can't just blame everyone in here. Is not your life after all since the beginning but is life of Hyoudou Issei]

'Ddraig? I thought you going to sleep'

[Your anger awaken me. Partner i know you upset but please calm. If you can't calm for them please do this for me i really sleepy since i just done construct your body]

Hearing his partner and best friend plea Ise face softened and he take a deep breath then sighed

"Fine. I guess you right Rias" Ise said as he turn to Sona and Saji

"I apologise for my behavior Sona-san, Saji-san. I just have a BAD day. I will try to control my emotion more, now since we done. I will go to Old House first" with that Ise turn and leave but before he leave he whisper to Rias ear

"Thanks Rias. I really need that" whisper Ise softly as he smile to her and Akeno then leave. Rias and Akeno blush a little seeing his smile but quickly gain their composure

"I apologise Sona. Ise is have a bad day. He has a... Accident. He is not that bad actually" Rias said with apologise tone

"Is okay Rias at least he also apologise but may i know why he just snapped like that?" Ask Sona

"I afraid i can't tell you Sona... But i can tell you one thing.. Hyoudou Issei that is always pervert and like idiot man is no more.." State Rias with serious

With Ise

Ise sit in sofa as he look into his album photo when Hyoudou Issei still as kid so he can gain infromation about him, he see Hyoudou Issei life is peaceful and filled with smile. Ise let out a smile little seeing this, how he jealous to Hyoudou Issei that he able to have normal life.

When he still kid Issei Beelzebub already fight with devil and kill people due to hars training from Old Maou faction so he can kill New Maou faction. His life is only filled with fight. Is a rare thing that he able to spend time with his family since his father is dead during the war of Old Maou faction against New Maou faction

"*sigh* sometime i regret to not have normal life but i also feel happy with my life" said Ise as he turn the page, Ise eyes twitched when seeing Hyoudou picture with some boy? But this boy is too pretty to be a boy. So is must be a girl, and he also see a man holding Holy Sword in the picture

"Holy Sword? But Hyoudou parent is not exorcist. That's mean this girl family it is. Hmm" mumble Ise

"Ise-san.." A voice called him as he turn and see Asia in front of door

"Ah. Asia-chan, come here sit with me" said Ise as he pat his side. Ise don't hold grudge against Asia, she is too pure for her own good so he try his best to not corrupt her

"H-Hai!" Asia walk toward him and sit beside him

"Umm what did you see Ise-san?" Ask Asia as she look at the album that Ise hold

"Ah? Is secrettt" tease Ise as he hide the album behind him. Asia pout cutely and try to look at the album but Ise move it again make her can't see and pouted more as she try harder to look at the album but Ise manage to hide it from her. Asia then pouted and turn away realising she can't get the book

"Hahaha Asia-chan you can see it later okay? I still using it" said Ise as he try to make Asia not angry to him

"Looks like you two have fun" Asia and Ise turn and see Rias with Akeno, Kiba and Koneko stand in front of door

"Well at least i manage to calm down a little though i still angry but i will survive. So what we gonna do today?" Ask Ise, Rias smiled seeing her peerage is manage to control his emotion she happy that Issei Beelzebub is still kind and caring like Hyoudou Issei

"Well we will get you two familiar now. I have talk with Sona and this is our turn to get you two familiar"(A/N: I know they hunt for familiar before Phoenix Arc but i need it for a little action so i move it into here)

"Ha! As if i need familiar! I'm strong enough to beat God itself if i want! The true Maou doesn't need familiar!" Said Ise confidently and place his leg on table

"Well if you says so. There are several familiar who their power can rivaled Satan or more stronger. Perhaps they can make a good pet" said Rias innocently

"I want that one!" Ise yell immediately make everyone sweatdropped seeing his antic change from serious to childish. Ise then stand and with magic he change into his usual outfit

"Well what we waiting for? Let's go then! I bored in here!"

Ise POV

After i change into my usual cloth we then teleported to a forest with dead trees everywhere. This place seems familiar for some reason.

"This is the place where you will get your familiars. Were just waiting for someone" replied Rias.

"Who are we waiting for?" I asked.

At that point, that question was answered. A man on one of the trees appeared.

"Hello there Gremory Group! My name is Zatooji of Madara Town! I'm a devil in training, aiming to become a familiar master!" he said as he came down from the tree.

"This man will help you get your familiars" said Rias as she showed hers.

She had a bat next to her, it then transformed into a girl. It was that girl who gave me the leaflet from before. I then saw the other familiars everyone had. Akeno had a small oni. Koneko then showed me hers.

"...This is Shiro." she said hugging the white kitten. Funny, for a minute there, I also saw Kiba's familiar, a small bird.

"I can get you any type of familiar you desire. So which one do you want? Something cute, or fast, strong, or maybe one with poison?" said Zatooji.

"Who the strongest one?" I asked him

"Hmm maybe its Chaos Karma Dragon"

"Wait! Chaos Karma Dragon?! You mean Tiamat one of five Dragon Kings?!" I asked again

"Yeah"

"HAHAHAHAHA! This is hilarious! Chaos Karma Dragon the strongest among Dragon King is become Familiar?! Oooh how mighty has fallen!" I laugh really loud! Hahaha in my world Tiamat is roam freely! In here she is nothing more than pet! Hahaha! Everyone stare at me like i'm mad but i ignore them! This is really hilarious!

[I agree partner! I never thought Tiamat will become pet! Hahaha]

'You the one who talk! At least Tiamat still out here free unlike you trapped in Sacred Gear!' I mocking him

[Fuck you partner fuck you!]

And i laugh more hard seeing Ddraig reaction. After few second i calm down and turn to Zatooji

"Where is Tiamat?"

"Eh? You serious want to take her? No one ever survive against her"

"I'm dead serious. Where is she?"

"Uhh okay she is in northwest from here there are large lake and cave with dragon statue in cave entrance"

I grin and turn to Rias and the other and give them a look "i will go there"

"Ise! This is ridicilous! I won't let you go against Tiamat! She's power is on par with Satan!" Rias yelled at me but it only make my grin wider

"You don't have any idea Rias. Beside... I want to relieve some stress and maybe by playing with Tiamat will relieve my anger" I said and then enter the forest immediately ignoring the call from Rias. Tiamat level is on par with Satan. Is not so bad if i can get her as my underling

Few minute walking i arrive at the cave. I can feel the surge power from the cave

"Oh how mighty has fallen. To think the strongest Dragon King become a PET!" I shout at the cave entrance and few second later a loud roar is come from the cave

"Who dare to mock me?!" I heard a harsh voice and mixed a little with girly from the cave as ground start to tremble. From the cave a large blue western dragon is appear in front of me. It size is about 60M, this is Chaos Karma Dragon, Tiamat the Strongest Dragon King

"Well well if this isn't Chaos Karma Dragon. I come here to test your power are you worthy to become my familiar" I said with smirk

"You have nerve Devil. Do you think you strong enough against me?!" Tiamat roared at me and i simply smirked and remove my bracelet that supress my power then toss it into pocket dimension and release my energy

The ground start to tremble some rock floating and then break into pieces even tree around me destroyed. Land below my feet is cracked as my cape and hair start to float. Tiamat eyes widened when she felt my power. I float in the sky as my demonic aura began burst from my body and make shape into some gigantic creature(Deliora from Fairy Tail. The aura color is orange-brown and the eyes color is pure black) the creature let out a mighty roar as i grin evilly to her

"Well Tiamat the Chaos Karma Dragon. I named this technique Deliora. My name Issei Beelzebub and i shall be your master!"