(Y/N)'s POV

'It's been a few days now and things have been getting weirder'. I thought as I wrote it on my journal. "Somehow, sunlight feels like I was being stabbed by millions of knives. I got insomnia...which was multiple by 10. Sometimes I only got one hour of sleep. But worst of all..." I made my way to my side and see Bill playing a miniature piano that I do not want to question how he got it in the first play. "And I've been seeing him in my life..."

"What are you writing scrawny?" He floats nearby me and saw my journal. "Who is the unlucky guy you call Flying Dorito in 50 lines?"

I looked at my book and realizes that I've been writing 'Flying Dorito' in all the pages rather than my research...which is waste of paper.

"Wait a minute! No, I don't get it."

"It is you, Dorito."

"Well, fuck you then!"

"Where in the world you decide to use that world?" I turned my chair and goes to another pages to right about my research and NOT 'Flying Dorito'. "From my brother porn magazines? I can pinpoint what's your fetish, one-eyed demon."

"Now where the sass comes from, young man." Bill put both his hands on his...hips? I don't fucking know about this thing biology. I do want to dissect it. I done it with frog...and it wasn't pleasant.

"I don't know. My mom, my aunt. Who knows! Probably I inherent from you."

"Aw."

"Not a compliment."

"Whatever, Hyoudou." He floats away and sat on the table. "Now, tell me about that girl that we fight?"

"You mean Yuuma or whatever her name is?" I twirled my pen around, raising my eyebrow at him. "Turns out, everyone got a short terms of memory lose which is impossible."

"Not impossible for me that is. If I had my physical body that is..."

"And there's no reason for me to let you possess me, psychotic demon."

"And your point is?"

"You're insane."

"And?"

"What? Sleek, liar, bastard, fucktard, bitch-"

"Okay, we get it Shadow the Edgehoge." Bill levitates a book and throw it at me, which I dodge it...before it's flew back and hit the back of my head.

"(Y/N), who the heck are you talking too?" The voice of my twin asked in concerning manner. I looked at the door and saw Issei looking at me as I was mental...I probably am. "You've been talking to the wall for the pass two hour."

"You've been standing on my door for two hours?" I inquired with my stoic face, also impressed by his patience. "Impressive. You always goes head face into something...Mainly anything involving your dick."

"Oh, burn!" Bill put his fist on where his mouth supposed to be as he cringed at it. "Need some aloe vera?"

"Put him in the freezer instead."

"Are you plotting to murder me?" Issei looked at me like I was a killer from London.

"Ever heard of evil twin? That's me." I chuckled like a maniac before stopping myself. "I've been more sarcastic and evil for some reason...You're bad influence Cipher." I glared that one-eyed maniac.

"Thank me later~!" Bill sang and flew through the wall.

I looked at my twin with a wide eyes. "Issei, promise me if I go crazy and wear a fedora, call the ambulance." I pleaded as he just nodded, unsurely of my current condition.

"S-Sure..."

[Timeskip]

I looked at the 'crime' scene that is the park. "Did you find anything Watson?"

"Stop calling name, bro..." Issei turned his head towards me, squatting on the ground. "And why I'm the sidekick-"

"Because I said so," I pointed my book at him, showing my serious face. "And I'm slightly more intelligent than you. I have mind palace."

"So you're sociopath?"

"A working sociopath, Issei. You need to know the difference."

"That you're mentally ill?"

"...Now where you steal my jar of sass?"

"Not the point! The point is that Yuuma...Seize to exist."

"Good observation, Watson." I patted his back, receiving an annoyed groan as we kept on searching in the park. "I think there's a deeper meaning about thi-Do you felt that?"

Suddenly, we both felt a strange presence behind us. We looked behind and saw a man in a trench coat.

"If you some sort of gay flasher, than proceed to leave this area." I taunted while my twin was shocked by demeanor. "We don't want to see does wrinkly dick of you, Inspector Gadget."

"Okay, that's mean." Issei pointed out, clearly creep out by my attitude. "Get some pill chill."

"Am I always this mean?" I asked, finally realize what I said.

"No. It was like you became one with an entity of burning someone."

"Terrific! I can annoy everyone including you."

"Please don't." He begged.

"No can do, my pervert twin." I then looked back at the man in trench coat. "I'm sorry, why are you here exactly?"

"Are you done conversing?" The man asked with tint of annoyance in his voice. Mission accomplish! "Because it's really is unfortunate...me running into two like this."

"I'm sorry. Wanna set up a date with two teenage boy?" I taunted once more, trying to get into his nerves. "Sorry pedo, we're into females. Not some naked old man in the trench coat. Gay strip club featuring He-Man in mankini is five block away. Free lap dance for new customer."

"How did you-"

"Don't ask Issei." I stopped my brother from asking the damn question. "Sometime you wish you didn't know everything."

"This is why low-level creatures are such a nuisance...pretty annoying too." The man scowled before projecting some sort of light on his hand. I grew aware of it as I pushed Issei out of the way, with the light spear pierced into my right leg. I shouted pain as fresh blood starts pouring on my leg, it hurts like freaking hell as the thing burns in my muscles, increasing the pain more.

Issei trembled as he saw me bleeding, but still standing. "Bro!"

"Dammit!" I gritted my teeth. I then felt more pain coming through my left leg, as another light spear pierced through my skins. I shouted in pain as I knelt to the ground, feeling those excruciating pain from it. "Run Issei, RUN"

At first Issei didn't budge but seeing my cold glare, he decide to follow my order and sprint his way out of here. I looked back at my assailant, hissing in pain as bloods keeps on pouring from my legs.

"What the fuck is this thing?!"

"It hurts doesn't it? Light is a deadly poison to your species after all."

"Funny...I remember I wasn't a nocturnal creature."

"I see...you just reincarnated as a devil? Pity that you have to die like this..."

Wait, did I heard it right. Reincarnated as devil? What the fuck does that mean?

"But first, I deal with the runaway first." He sprouts a black wings just like 'Yuuma' and flies above, chasing Issei with it.

"Don't you fucking dare hurts my brother!" I yelled at him with an angry tone in my voice. "BILL, WHERE THE FUCK ARE YOU?!"

"Now that make more sense!" Bill shows up from out of nowhere. Well, only I can see him though...which is unfortunate. "You're reincarnated into one of my kind! That is why you can use my power."

"What now?" I looked at the triangle demon, confused of what does he means. "Enlighten me...pretty quick cause that guy gonna kill my twin!"

"Well, let just made this quick then." Bill put his hand together and looked at me with a seriousness in his eye. What that's not like him doesn't it? "I conclude that, I'm reincarnated as you."

"Hold the fucking phone! I am you?"

"Seems crazy but...the reason I can't fully possess you because I am you! You're just...in a different form in a different times. Just like the magical lizard said in those dreams you got and my promise. I only can possess you for a certain amount of time which is stupid if you ask me. It as if someone nerfing my power."

"Crazy...but apparently the most logical answer at this time." I put my hand on my chin before snapping back to reality. "No time to be amaze, (Y/N)! Teach me how to use your power!"

"Are you insane?!" Bill exclaimed as I give him 'Are-You-Serious?' face. "Just kidding. Are you sure?"

"Positive!" I heard Issei screamed in pain as I turn around and saw my brother bleeding badly from being stabs in the abdomen. I looked back at the Flying Demon Dorito in anger. "I BEG FOR POWER NOW!"

Bill stretched out his hand for a handshake. "So, we got ourselves a deal then?"

I looked at the hand for a second before nodding my hand. "I accept any consequences." I grabbed his hand and shakes it...before falling unconscious.

"I take it from here now, kiddo. Watch and learn!"

Third Person's POV

IsseI was bleeding heavily as he looked behind his shoulder and see the unknown man readying his another spear.

"Don't worry." The man aimed his spear at him. "I'll end your misery soon enough."

The brown haired boy looked at the man in fear. 'Someone...help me!'

Before the man can throw the spear, a blue flames shatters the said weapon, shocking the man in trenchcoat. He looked around area to find out who attacked him, only to see the (H/C)-hair boy with his hands burning with blue flames with his eyes close.

"You know, top hat is my thing back in my day in my universe." '(Y/N)' said as walked forwards with his still bleeding legs. "I always think that pain is just hilarious. I mean, couple of spears in my leg doesn't stop me from walking like badass...am I right?" He opens his eyes to reveal that his left eye burns bright blue, showing some sinister smile at his assailant.

The mystery man was taken aback by the change of appearance as the boy pulled out a fedora out of nowhere and put him in the head, lighten the said cosmetic on fire.

"Now this is what I call unusual. A burning hat!" '(Y/N)' joked as skipped towards his attacker with a happy attitude. "People must pay a lot of money in hats in a game if you know what I'm saying. I mean...it just a hat! You can by a real hat with those money you know."

"T-This p-power..." The man steps back a little bit. His body was trembling in fear, feeling the sudden surge of power coming from the man. "Y-You're not a devil! What are you?!"

The boy stopped as he dropped of the smile. He snapped his finger, lighting it on blue fire before showing of a creepy smile that gonna haunt a man. "Call me...(Y/N) Cipher...Now burn...In third degree~!"

He cheerfully attacked the man who dodged the first shot. But '(Y/N)' didn't stop there as he kept on firing until it hit his arms. With immense speed, he appeared in front of the man in split of second and punched him straight to the stomach with a flaming punch and send him through a tree, breaking it in half.

"Shoryu-Hadoken!" He shouted manly before laughing out loud. "Man, I always want to do that...but that game guy...I hate him."

'Can't you just finish him off?' The real (Y/N) told Bill who currently possessing his body, impatient from the event. 'You have time limit, remember?'

"Where's the fun in that if we end it early?"

'You're sadistic bastard.'

"I-I can't fight you...I must retreat..." The man stood up as he's breathing heavily.

"Leaving already~?" Bill pouted like a child before snapping his finger. "But we're barely started! Here's a gift from me!"

A bomb appeared in front of him out of nowhere before exploding, injuring him even more. The teenage boy laughed out loud as he jumped around like a child.

"You're insane!" The man coughed up some blood as Bill stop prancing around and looked under his legs towards his now victim.

"And you're point is? Its reoccurring quote, I know. Everyone knows I'm crazy already." The man created another light spear and throw it at the boy who stopped it with his own power. "I used the force! I have the higher ground now, mysterious man!"

Bill properly stand up before looking back at him. "Take back, I don't need it!"

The spear turns around and go straight towards the man and pierced through his leg. The man shouted in pain as dream demon spun around like he was dancing and stopped in front of the man. "Oh well...Karma's a bitch!"

"You pay for this!" He goes for another attempt until a red blast exploded in front both of them. "Damn you!"

'Is that you?' (Y/N) asked via the mind.

"It wasn't me, I swear!" Bill waved his hand.

"That would be me." Both of the man turn around and saw a familiar girl appeared out of nowhere from a red circle. "Stay away from those boys."

"Who the heck is this girl?" Bill calls out as he jumped back from the trenchcoat man.

"Damn you!" He creates another spear towards the (H/C)-colored boy, which was deflected by none other than Koneko.

"Senpai!" Koneko looked at the boy with flaming blue eye with a slight of concern in her voice but quite unnoticeable. "Are you okay?"

'She called me senpai!' (Y/N) gasped in shock.

"(Y/N) is fine while me? Spotlight taken..." Bill told her, confusing the girl with his words. "He tell you later!"

The man lunged his spear at Rias but was stopped by lightning strikes from out of nowhere. Out comes another girl with a long black hair, a big chest and killer curves that will make any man fall for it.

"(Y/N), your heart rate is rising." Bill pointed out, feeling his chest once more. "Is this normal or it the sign of-"

'Not, a single word, Bill.' (Y/N) warned him.

"I see now...Both of you and your brother are-"

'I'm not an extreme pervert, Bill. And can you not say it out loud?! It really destroying my image as a normal student.'

"There's nothing normal about this event, (Y/N). It's Weirdmaggadon all over again."

"Senpai, are you okay?" Koneko asked the boy which Bill responded with a pat to the head.

"Nothing, sweetheart." And with that, the white haired girl blushed from the nickname, which irritate the host of Cipher.

'BILL!'

"What?"

"The red hair, you're from the House of Gremory." The man acknowledge as he held on his injured leg.

"My name is Rias Gremory. How are you my dear fallen angel?" The red haired girl asked the man.

"When did things suddenly get so civil? I remember I was in a middle of cooking a chicken." Bill complained as readjusted his fedora on his head.

'Well, we didn't get the chicken dinner...' (Y/N) spoke via his mind which the possessing demon nods his head slowly.

"Heh...well, well, who knew?" He took his fedora off the ground and dusted it clean, before placing it back on his head. "This town is under control of the next head of the great Gremory family. So those two are part of your household, I take it?"

"Yes, and if you bring harm to either of them, you will get no mercy from me." She warned which Bill laughed out loud from it, earning everyone attention.

"Too late for that, princess." Bill wiped the tears of joy in his eyes before pointing at Issei. "His half dead and my host is crippled! Now can I kill him?"

"(Y/N)." She sternly looked at him as the boy slightly shivered a bit.

"Man, that what I call a cold stare am I right, (Y/N)?"

'Don't bring me into your mess.' (Y/N) sighed.

"You already are because I'm using your body."

'Shit, you're right...fuck me.'

"I apologize for the misunderstanding." The man bowed. "Though it's unwise to let your servants run loose like this. The next time that one-" He motions a gloved hand towards Issei. "Goes for a stroll, he may run into someone less cordial then me." He then points to me. "As for that one, I wouldn't want to go anywhere near that man ever again. Even for reincarnate devil, he already powerful as a high-class devil."

"Aw, you making me blush!" Bill rubbed his nose before looking at him back with a stoic face. "Seriously though, don't mess with my host ever again, birdman. Or his twin brother...Understood?"

"Duly noted."

"I appreciate the friendly advice." Rias smiled at the man. "But bear in mind that if something like this happens again, I'll make you regret the day you crossed paths with the House of Gremory, my friend."

The man scoffed at her. "No offense to your noble household, but bear in mind the same could be said about you." He takes to the sky and disappears. "My name is Dohnaseek. Hope we never crossed path again."

'Highly doubt it...' (Y/N) deadpanned.

"Hide-n-Seek? What a lame name." Bill chuckled, before he grunted in pain and held his head. "Losing control already."

'Wait, what?'

"Out of time, remember one thing, kid..."

'What is it?'

"Buy gold, bye!" And with that, Bill closed his eyes before reopening back. His left eyes turn back into his normal (E/C)-colored eyes. (Y/N) patted his body, feeling every single inches of his body and wiggles his fingers. He looked at three girls and asked, "Am I back in my body?"

"(Y/N)?" Rias walked towards me, looking slightly concern. "Are you alright?"

"Yeah...I'm fine..." (Y/N) smiled before feeling numb at his still regenerating legs and fall down to the ground back first. "Nope! Not alright!"

Koneko caught the boy, with a miraculous strength even with that petite body. "I got you, senpai."

"Thank you, Koneko-chan." (Y/N) smiled before realized that he left his brother. "Issei!"

"If we don't do something, he'll die."

"That won't happen." Rias told us as she knelt down towards the boy with a smile. "Because he's mine-"

"Wait, what the actual fuck just happen?" (Y/N) asked out loud, incredibly confused with the turn of event. "Like what is going on? Is this real life? Is this just fantasies?"

"All will be answered." Rias smiled at me before putting her hand on his face while Koneko frowned a bit at her. "Let's go home...my King."

"Say what now?" Before I knew, I felt so tired that I fell unconscious on the spot.

[Timeskip]

I woke up next morning, feeling all sore from my body as I looked down my leg and slightly noticing that my wounds has healed. I sighed in relief before looking at the side and see Koneko staring at me while sitting in a chair. I jumped out of the bed in surprise, resulting me falling on to the floor.

"Senpai?" Koneko tilted her head as she stood up from my chair.

"K-Koneko-chan?" I'm on four on the ground, looking at her in confusion. "How did you get in my room? Moreover, how do you know where I live?"

"I'm the one who bring you here." She stoically replied and stood me up. "I came in the morning to check on senpai."

"R-Really?" I stuttered, blushing with the fact that a girl is in my room. "That's sweet of you-I mean...Thanks!"

"Your parent quite happy that I come here though." Koneko helped me to stand up to the feet. I wriggles my toes before walking normally.

"Wonder why."

"I won't put up with this anymore Issei!" Well, mom is angry. I guess Issei is fucked in ye olde language of Fuckticary...is that even exist? "We are going to have a serious talk about this!"

"Koneko, I think you should wait downstairs." I told the white haired girl with a small smile. "I'm gonna take a quick shower..."

She just nodded her head and walked away from out from my room as my mom walked pass by, mumbling about...Issei having sex with a girl? Its official...I'm insane.

Author's Note (This skit is unrelated to this story):

I'm sitting on my chair, playing MUGEN alone before Deadpool teleports in with a glare.

Me: What do you want, Wade?

Deadpool: Where's update for my story?

Me: I promise myself to do this story for 5 chapter while taking a short break on your story.

Deadpool: Anywho, congrats on 200 followers! We didn't celebrate it earlier yeah?

Me: True, I would like to thanks every one of my followers for joining this epic ride-

Deadpool: There's nothing epic about this.

Me: Shut it, Freddy Krueger fucking the map of Utah.

Deadpool: Hey, we didn't use that reference yet!

Me: We didn't do your trailer reference yet.

Deadpool: Begs me question...this is DxD story. Is it-

Me: *smiles slyly while showing a file with 'Harem Plan: Girl that Issei doesn't deserve for our OCs'* It is.

Deadpool: They deserve better...*thumbs up*

Both of us starts laughing like maniac while Kokichi standing outside feeling left out...

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Me: Yes, it's harem ;)