I own nothing at all and everything is owned by their respective owners.

"Speaking"

'Thinking'

"Speaking in thoughts"

[Ddraig/ Boosted Gear speaking aloud]

"Ddraig speeking to Issei in thoughts"

'Dragon/ Creature thinking'

"Creature/Dragon speaking"

[Robotic voice]

-DxDxMg-

Prologue- Monster meets Dragon

-DxDxMg-

Hyoudou Issei's life was defined by 3 critical events, first, meeting a rather perverted old man, second, his friend who moved away with his parents to Europe, and finally, being killed by the fallen angel Raynare and being reincarnated by Rias Gremory.

What if one of those events changed? Better yet, what if there was a fourth event that shaped Hyuodou Issei into a different sort of character? A less perverted one perhaps?

...Maybe.

Not really…

His perversion kinda transcends even the Kaleidoscope.

-DxDxMg-

Hyoudou Issei was lost in his thoughts, just weeks ago he met an old man who talked about how good boobs were, this left him very interested in them, even though the old man had to stop part way through because the police showed up.

As he mindlessly walked around his neighborhood he ended up at the park where he and Iri used to play before he moved to Europe with his parents, eventually he ended up tripping over something near the treeline.

"Ouch." He mumbled as he moved to pick himself up. "What did I trip over?"

He started to look around for the offending object. He was surprised when he spotted it, a modest sized bottle that was shaped after a woman's bust, and smiling face, on the neck of the bottle was a small tag with the words "Drink Me ~ Lilith", the liquid was a strange black colour that seemed to have a myriad of shifting colours in it when the light struck it.

Now Issei knew that he shouldn't drink strange things he found, but he also remembered that old man saying that boobs would never lead you astray or hurt you, and the bottle had boobs on it so it couldn't really be bad. Could it?

Making up his mind Issei decided to put his faith in boobs and drank the bottle down as fast as he could. He almost choked part way through as the thick liquid had an excessively sweet taste with a metallic undertone, but he managed to persevere.

"Blechk." He said while sticking his tongue out.

He was about to head home do find something to drink to get rid of the taste when something happened, his body felt like it was on fire but it didn't hurt, it was a pleasant burning, then he was surrounded in an ethereal white glow.

When the glow faded he felt different, he felt a cold burning feeling take grip in his heart, he had felt this before, what was it called again.

'Why is it fair that my friend left me?' He thought as he saw some kids playing together across the park. 'Why should they have friends to play with when I don't. I hate them, I hate them! I HATE THEM!'

He then began to wring his hands in anger trying to hold himself back from harming those kids. It was during this act that he noticed his hands had changed, gone were his childlike hands and in their place were thinner ones covered in feathery black gloves, he then took notice of the rest of himself and was startled by the change, his chest was covered in a tight black dress with metal accents that splayed off to the sides at his waist, then he saw something that made him panic.

His legs.

His legs were now more slender and were made of bluish-green fire that ended below his knees and changed into a large ball of the blue-green flames held in place by a black metal cage.

He had the natural reaction of anyone who had undergone such a change.

He screamed.

"AAAAaaahhhhh!. Where are my legs!? Why are they on fire?!" He yelled. "I don't want to be on fire! Make it stop!"

There was another flash of white and he was back to himself, his arms small and uncovered, and most importantly, his legs were now in shorts again and NOT on fire.

He was so startled that he ran home without paying attention to anything else, especially not the old man with red eyes and a smug grin picking up the empty bottle and waving his hand over the area before disappearing into a kaleidoscope of colours.

When he got home he tried to tell his parents what happened, they didn't believe him, and sent him to bed early both for making up lies and because he seemed stressed out.

-DxDxMg-

When his parents called him down for breakfast they were greeted by a more feminine voice instead of their sons usual one.

"Coming mom, just a min-Kyaaaaa!" the voice started before screaming. "MOOOM! It happened again!"

They then heard his door slam open and head heavy steps clack down the stairs.

They rushed from the kitchen to the stairs and were greeted by a young girl with long red hair and eyes so green they would make an emerald blush, her most defining features however were the crimson scaled claws on her arms and legs, the long tail swaying behind her, her wings which were webbed with rusty red leather and the golden yellow horns that were beginning to protrude from her head.

The girls face went from startled to beeming when she saw their faces.

"Mom! See, I told you I turned into something yesterday," The voice squeaked, the smugness that could only come from a child being correct flowing through it. "And you said I was making things up."

"Ah- bu- hm… Bu- I, you, mm…" His dad sputtered, trying and failing to process what he was seeing.

Issei's mother took the more direct approach…

And promptly fainted.

"Mom?" The girl asked. "MOOOM!?"

-DxDxMg-

After Mr. Hyoudou had made sense of himself and Mrs. Hyoudou had regained consciousness, they confronted their son? Daughter? Child about the changes, normally they would try to accuse the child of lying and demand where their son was, but in their shell shocked state they just accepted the declaration that she was Issei flat out.

"Issei, honey, Im sorry but this is a lot to take in." His mother said with a slight frown of contemplation as she leaned her head into her hand.

His father then took this moment to speak up. "You said you changed yesterday, but when you returned you were normal, can you change back to normal again?"

"Un." Was Issei's only reply as she smiled before she was engulfed in a blinding white light that forced his parents to shield their eyes from it.

When the light faded there sat Issei in his pajamas.

His father was completely speechless

His mother did the only sensible thing for such a situation.

She fainted…

Again.

-DxDxMg-

That night after everything was resolved Issei found himself in a world of fire, just as he was looking around he heard a whooshing noise from behind him.

Turning around Issei was greeted by an absolutely mammoth European dragon, its scales were crimson red it had emerald green eyes with reptilian slits in them, the only part of the dragon that was not red were the tips of its horns which were golden in colour.

"So you have finally decided to visit me, my host." The dragon said in its booming voice.

"Who are you? Where are we?" Issei asked, any sense of self preservation was thrown aside as he bore witness to the amazing sight before him.

"I am the Heavenly Red Dragon Emperor of Domination, the Welsh dragon of legend, Y Ddraig Gosh." The dragon thundered in pride, flaring his chest out. "As my host you may call me Ddraig."

"Wow," Issei said in wonder. "Your so cool Ddraig-nii."

"D-Draig-nii?"

"Mm," Issei hummed in agreement while nodding. "Nii-chan's are supposed to be cool, and what's cooler than a big cool dragon?"

"You really think I'm that cool?" Ddraig asked.

"Yeah, the coolest. But nii-chan, where are we? Also, what do you mean by host." Issei asked, tilting his head as he did so.

"We are currently inside your mind as you are dreaming, as for host, I would recommend that you look down at your arm."

As Issei looked at his arms he saw that the left one was covered in a long red gauntlet that was similar in texture to the dragon before him with a large green jewel on the back of the palm and two golden spikes coming from the back.

"That gauntlet you are looking at is the Boosted Gear, a sacred gear that doubles the user's power every 10 second until the user reaches their limits." Ddraig said smugly. "It is one of 13 sacred gear that are capable of killing even gods, and proof that you're my host."

"Ddraig-nii, killing is bad." Issei admonished the dragon, before his personality did a 180 and turned to excited. "But everything else sounds so cool, like those sentai shows on tv!"

"HA HA HA. My, you might just end up as one of the most interesting hosts I've ever had, especially with that ability that woke me up," Ddraig said before continuing. "But enough about that, it's just about time for you to leave here, we will talk later."

"What do you-AHHHH!" Issei began to ask before he started falling.

Issei shot up from his pillow with a screech.