Hello hello! I'm back with something new this time. I've decided to place Issei inside of My Hero Academia. To briefly summarize, I'm making Midoriya and Hyoudou childhood friends. Since they lived in two separate cities, I couldn't see each other in quite some time. Time to let the story tell itself, enjoy!

I own nothing of these series, this purely an imaginative fanfic!

One lonely and boring day, our young, brown haired teen looks out the window in thought. He has his left hand on his chin, and he speaks into it.

"Ddraig, how ya holdin' up partner?", Issei asks his dragon partner. His left-hand glows and responds.

"A bit bored. Not to mention you are still reminiscing you young, green haired friend since your youth. I should ask you this question.", he responds to his sadden, yet still deep in thought partner.

"*sigh* You're right. To think he'd last so long by himself, especially with that asshole Bakugo tormenting him! He looked up to him, once his quirk developed, he looked down to Midoriya. I know our power isn't a quirk, but to him, it seemed like one and he felt like shit.", Issei states while getting a bit upset. He and young Midoriya have been friends since birth but had to move away from each other after attending different schools. Issei, living in Kuoh, Japan and Midoriya in Musutafu, Japan.

Issei and Izuku used to be neighbors in Musutafu and got along super well! Issei was one of Izuku's first friends and he vowed to meet again after Issei moved to Kuoh. Issei's parents thought Inko and Izuku should join but they refused, stay in their hometown.

"Hmm… I think I should make a visit to Musutafu! See if I can link up with Midoriya.", Issei says excitedly, drawing the attention of his two, perverted friends.

"Where do you think you're going without us, huh?! You can't be hogging all the babes for yourself!", the bald friend fired at Issei.

"Yea! If you think you're going anywhere without us, think again, Hyoudou!", the friend with glasses shouts.

"Relax guys, I'm just gonna visit an old friend. No need to get so worked up. Besides, I wouldn't be caught dead in public with the two of you!", Issei fires back with a smirk on his face. This gave his dragon partner a small chuckle.

"Oh, come on man! That's cold, you can't say that to ya boys!", The bald one shouts. "Who's the lucky lady you wanna see without us!?"

"Not a girl, an old bro. Izuku Midoriya. I'm going to visit him this Friday."

"You had friends before us? Unbelievable!", friends with glasses scoffs. Issei chuckles to his response.

"He's the reason I gave up on my perverted ways, though not fully. Midoriya is like a younger brother I never had and he looked up to me in that same manner. I wanted to set a good example, which is why I'd rather not be seen with perverts like you a lot due to my image slowly gaining good views", Issei states looking determined. This statement brought comedic tears to the boys as they felt betrayed. Issei still gets flustered when he sees a well-developed young woman, as any young, teenaged male would. He always had respect for women when growing up with Midoriya, but his resect grew even more when Issei decided to stop being so perverted and respect them for them and not their breasts. Issei still makes perverted comments in his head, deep down, he's not going to stop being perverted.

The school day ends and Issei is confronted by a young female. She introduces herself as Yuuma and instantly asks Issei out, but he felt something…off.

'Ddraig, you feel that too, right? This…angelic aura, yet it feels corrupted.', Issei says in his mind to his partner. Issei started to break into a cold sweat.

'Yes, this girl seems to be a fallen angel, but what purpose does the Fallen Angels have with you specifically?', Ddriag replies slightly curious. 'I know you're suppressing your power, but even so, how did she find you?'

Issei shakes his head vigorously and comes to his senses. He then lets out a deep breath.

"I'm sorry, Yuuma, but I have to decline. D-Don't get me wrong, you are stunning, but I don't even know you and I have stuff to do! Gotta go!", Issei responding to the question as he frantically leaves the area. Without looking back, Issei bolts home, leaving Yuuma to look furious and a bit flustered.

"Damn that boy! He's smarter than I thought…"

(Occult Research Club)

A young, crimson haired, well-shaped figured woman sits in her office chair deep in thought. This is Rias Gremory, oblivious to Issei, she has been keeping tabs on Issei and another certain individual.

"Hmm… Both boys are very strong, but I can't tell if I want only one or both. Then again, I am not the only one wanting them in my ranks. Issei is leaving to an enemy territory and this, Daniel, fellow seems to be sort of a lady's man.", she says aloud to herself. Her equaily as beautiful, and bustier friend and queen of her peerage, Akeno, buds in.

"Issei mentioned visiting an old friend, we might not see him for quite some time. Daniel, however, is one handsome, chocolate skinned prince charming. He comes from the States as a foreign exchange student. I'll keep my eye out on him.", she replies, making Rias happy.

"Good, but I'm worried for that Issei boy, entering enemy territory without even knowing it. I hope he'll be fine…"

(Midoriya Household)

Young Midoriya is doing his usual note taking and watching the same All Might video. His mother comes into his room with a frantic, yet very happy and excited expression.

"Izuku, Izuku! Your friend with the "dragon quirk" is coming to visit us!", Inko shouts happily. Midoriya looks at her and then realizes what she meant, Issei was making a visit.

"R-Really!? It's been so long! I thought he forgotten about me, this is awesome!", Midoriya replies ecstatically. They jump and dance around, know Izuku's first friend is returning to their lives again.

(Midoriya's school)

As class was going on, everyone discusses how they're either going to UA or wanting to attend. Midoriya mentions he wanted to go to UA, to which everyone laughed at the quirk-less boy, except a certain explody boy.

"DEKU! You think you can go to UA without a quirk? Don't make me laugh!", the young, angry blonde said. Midoriya gulps but keeps his composure.

"K-Kacchan?! I-I can, and I will!", Midoriya replies while trembling in his shoes. The blonde kid, who is known as Bakugo, has a tick mark on his head and he starts taunting Midoriya with is quirk. His hands slowly start popping and he has an evil smirk on his face.

"You're really pissing me off! Good luck getting into UA, weak twerp!"

"I-I'll show you! I will prove I can become a hero!"

(Outside)

As Midoriya is walking and holding is notebook, he is caught in a surprise attack by Bakugo and his gang of bullies. Frightened, Midoriya stands still before turning to face is bully.

"Well, well, well, all alone like always. What a loser, HA!", Bakugo shouts while grabbing Midoriya's notebook on heros.

"G-Give that back! That's not yours!", he shouts before he is pushed to the ground. Slightly in pain, he stays on the ground to avoid moving.

"Oh this?", Bakugo says as he proceeds to burn the book with his quirk. "I thought this was just fuel to the fire, oh well, YOU"RE NEXT!", Bakugo yells slowly walking over to Midoriya.

"Hey, asshole, leave him alone!", a voice rang. This annoyed Bakugo as he turned around only to get hit with a left hook. The face behind the punch made Midoriya all the happier.

Boost!

It was Issei! Issei was walking past when he notices Midoriya being bullied and decided to make a surprise entrance.

"D-Damn you! You'll regret that severely! NOW DIE!", Bakugo yells flying towards Issei at high speeds. Issei side stepped to the right and slammed his left fist into Bakugo, slamming him into the ground.

Boost!

Issei then drew the attention of the other adversaries and proceeded to knock them out easily. He then helps up his childhood friend.

"Hey, man, you looked like you needed help.", Issei says jokingly. They both share a hardy laugh and then walk back to Midoriya's place. Bakugo looks up in pain and anger.

"Damn that red lizard freak…"

(Midoriya Household)

"Oh, Issei, I'm glad you came to visit us! It's been far too long!", Inko says as she hugs the dragon emperor.

"I always wanted to come visit, now that my "quirk" manifested fully, I was able to fly here! Cool right?", he replies and giving a wink to Midoriya, who winks back in agreement. Both boys have a written code to never tell anyone about the identity of Issei's power. In doing so, could put both boys in danger, or worse.

"Your quirk is so unique from what I've seen from anyone. It's like you have more than just one, haha!", she replies smiling. After Issei stops by to visit, him and Midoriya start catching up with each other.

"So, you started taking notes on heroes? Interesting. Let me see your notbook.", Issei asks, receiving a charred notebook. Issei frowns, but then a glowing, emerald green light glows from his left hand.

Dragon's fixture!

Ddriag yells as he repairs the charred book. In Midoriya's amazement, he grabs the book and writes in it while muttering to himself about Issei and his power.

'That notebook has very important information regarding you, partner. I warn you that you must make sure he takes care of it.', Ddraig mentally tells Issei.

'Yea, plus I'm sensing a heavy demonic presence in this city. My visit might end up lasting a bit longer.'

'Indeed, plus young Midoriya has untapped power within him like yours. He too has a sacred gear,'

Issei is shocked at this news but remains silent. As they are walking around the city, they see a green, sludge monster like villain attacking and it seems to have Bakugo in his grasp.

"Kacchan! I have to help him! No, I WILL help him!", Midoriya shouts as his eyes turn turquoise-green and he charges at the villain. Issei looks at his young friend and notices his hands have that same color of energy in the form of gloves.

'That must be his sacred gear!', he thought to himself. 'It's official, my trip will be a lot longer'

'That is the Willpower gear from the Jade Dragon, Midoriryu. I knew Midoriya was special, it's as if Fate had a hand in bringing you two together.'

'That so? Then we will grow stronger together, but with this demonic presence in this city, he's not the only one being watched…'

Prior to meeting up with Issei, Midoriya had already seen the villain before and was saved by All Might. Clinging to his leg, unbenoncted to All Might, him and Midoriya landed on the roof of a nearby building. They started talking about All Might's history and then he mentions to young Midoriya that without a quirk, he won't be able to become a hero. Upon his second encounter with the sludge villain, Midoriya hadn't notice his increased speed and power as he was charging at the villain.

"KACCHAN!", he yells, grabbing Bakugo's attention.

"D-Deku?! Deku, get away! You're gonna get us both killed!", Bakugo shouts at the charging, broccoli haired teen. Midoriya ignores the orders of both the Pro Heroes and Bakugo as he was already next to the villain. The sludge villain looks at the young teen.

"Oh look, there is another prey to consume! I like the color, green!", the villain shouts as he turns to Midoriya. He then grows slight concern as he see the turquoise-green transparent gauntlets on his arms. Soon after he sees this, he screams in pain as Midoriya starts removing some of the sludge off Bakugo.

"OW! What are you using on me, twerp! HYYYA!", the monster shouts while slamming into Midoriya's side. To his surprise, he stands up, ready to fight. The villain looks determined to fight the green haired teen.

"So, you're gonna put up a fight, huh? Then lets tussle!", the sludge villian challenges.

"I accept your challenge! I WILL save Kacchan!"

WILL!

(Back to Issei)

"Oh man, Midoriya is actually putting up a fight! His willpower and determination are strong."

"It would appear so, much like you, he desires to become the number one hero. You wanted your own harem, but you decided that you just want to protect the women you grow close with, yes?", Ddraig asks. Issei nodded, remembering that he wanted to be a role model for the young teen, clad in green. Before he notices, a burly man speeds past him and runs towards Midoriya, who is bleeding badly and still willing to fight.

The man that sped past Issei is none other than the famous All Might, the number one hero. The only thing he sees is the sludge monster and a badly beaten Midoriya, or so he thought. All Might comes in with one of his signature moves.

Detroit Smash!

A loud and powerful shockwave the villain away and left Bakugo suspended in midair and Midoriya on the ground. Before any of the Pro Heroes can scold the green clad teen, All Might grabs him and jumps to an alley way far from the downtown area. Issei sees this and proceeds to follow them, without drawing suspicion.

All Might lands and he proceeds to scold young Midoriya.

"Kid, what you did was reckless and dangerous! You could have gotten both you and your friend killed!", All might says to the young teen.

"I don't care! I had to do something, and I did! I stood my ground against him!"

"…"

"Not to mention he was brave enough to fight one on one with that sludge guy and survived through sheer will and determination to save his friend. I'd say he's a hero in my book", the red dragon emperor says, descending from the skies with is dragon wings dispersing from his back.

"You know young Midoriya?", All Might questions. Issei nods and tells him about their past.

"I see, well from what I see, you can become a hero!"

Upon hearing this, Midoriya lights up in excitement and smiles at both Issei and All Might. All Might then looks to Issei.

"Are you also going to attend UA, young man?"

"Nah, I'm already a student in Kuoh Academy. I came to visit my old friend I haven't seen in quite some time."

"I see, well I'm going to train this boy and prepare him for 'One for All'. One for All is my quirk that was past down to me. I, too, was quirkless and seeing Midoriya in action reminded my of my youth. You seem strong, I think you should watch over young Midoriya while he's attending UA."

"Well, I'll see what I can do. In the meantime, I'm going back to my town for a bit. I have business to address."

With that, they all nod and wave their goodbyes. Issei then spreads his dragon wings and flies off into the sky. All Might and Midoriya walk along the sidewalk back to the Midoriya household.

(An abandon building in downtown Musutafu)

"So, there is two sacred gears in this city. One from a rival town and one native to Musutafu.", a mysterious man says. This man in dressed in a grey and black suit and tie with a glass of fine wine in his hand. Long, black hair and blood colored eyes.

"Has the Son of Hades found something interesting?", said a beautiful, young woman walking up to him. "You seem very intruiged, Master Arien."

"Very! Two such powerful beings, I must have their power!"

Master Arien is the king of the House of Hades. Hades, being the God of the Underworld, doesn't interfere with his son's affairs if they don't threaten Olympias or him. The underworld and Hell are in different realms, but very similar to one another. Arien decided to for a house in the realm of the devils and has obtain hi-class ranking due to his father. Him and the current Devil King are good friends but share a friendly rivalry.

"Master Arien, what about your cousin, Rias?", the Queen of the House of Hades asks.

"Heh, to think my crimson haired cousin has the Red Dragon Emperor in her territory and me Having the Jade Dragon Emperor, we were destined to be rivals!", he replies with a smirk.

"Think we should go and give my dear cousin a visit…"

So this is the start of a brand new adventure between the worlds of My Hero Academia and High School DxD! I hope this wasn't too long and boring, but I wanted to give character development to Issei and Midoriya. Instead of my usual *Insert collapsing dimensional portal here* scenarios, I decided to just have them live in the same universe. A universe where quirks exsist and magic being hidden from the humans. I hope you enjoyed this first chapter and many more to come!