Hello Peps! It is a new story, but this time it is a cross-over. I hope you guys like it.

I do NOT own -Man or Ao no Exorcist

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'speech'- normal

'bla bla bla' - Thoughts or Sound effects.

'bla bla bla' - Demon speech

'write write write'- Writing

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Allen's POV

I ran.

I ran as fast as I could. I knew I had to get away. There were akuma and demons fighting each other, and I had to be right in between the both of them.

I knew I had to fight, or I'll be dead.

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As I fought, blood was seeping from my wounds. I needed to hurry, my sight started to become blurry and I was slowly becoming dizzy.

Nonetheless, I kept on moving. Never stopping. I kept moving.

'Don't stop. Keep walking forward...'

I heard Mana's words ripple in my head, and something about it just made me keep moving - like an encouragement I could never really get.

Someone's there.

Who are they? They aren't akuma. If so, then who is it?

I saw a sudden light then...Black.

Everything went black.

Normal POV

Mephisto and Shiro Fujimoto were heading to a location where strange mechanical-like demons were attacking other demons - not of it's kind. They wanted to investigate it before anyone else found out about these 'mechanical seeming demons'.When they got there, what they saw, was not to be expected.

It was a battlefield.

A once beautiful clearing in the woods, was now filled with giant bullet holes in the ground and trees. Trees were burnt and shattered in half - broken and mangled.

It wasn't the surrounding that shocked Mephisto and Shiro, but the figure that was laying in the middle of the discord. Of course, the figure, turned out to be a person.

The two walked over to the person only to be shocked again by what they saw: A young girl was lying on the ground. She was covered in blood and dirt from the battle she had fought, and her waist-long white hair was tangled with twigs, dirt and blood. The stranger looked to be about the age of 15. She was lying on her right side holding a big broad sword in her right hand. While her left arm was nowhere to be seen.

Shiro bent down to move her hair from her face to get a better look her face.

She had a fair pale complexion, that was married with a red scar. It was running down the left of her face. It runned downwards starting from a filled in pentagram. It then went over her eyebrow and down over the eye lid. It continued downwards for a bit. Then it turned and went left across her cheek. Then Finally it made a sharp turn downwards and it end near. The girl seemed to be breathing heavily, but even covered in dirt and blood she seemed to glow. She looked like an angel that was sent from heaven.

'Do you think she works for Satan?' Shiro asked as he pointed out the mark running down her face.

'No, I don't think so.' Mephisto replied as he took a look at the scar as well. He then focused on what was around them checking for any enemies.

'I think it is be-' Before Mephisto could finish that sentence a bright flash of light came from the girl and her sword.

When the light had disappeared the 15 year old girl had suddenly turned into a 5 year old. Shiro and Mephisto were beyond shocked. She still looked the same as her older form, but she seemed to not have any wounds on her. The sword that was in her hand has now lying not that far from her, and it seemed to be giving off an eerie glow. He once missing left arm was there. It's black colour made the cross on the middle of her hands stand out.

'What the is going on Mephisto!?' Shiro was shocked at what had happened to the girl, and he wanted answers. He also knew that they needed to do something before the Vatican turns this girl into a test subject.

'If I had the answers, I would tell you.' Mephisto said in a serious tone. He knew what the exorcist was thinking, he had already started planning on what to do, and he knew that Shiro would already want to take care of the mysterious girl.

'What should we do?'

'I will seal whatever power this girl has, into this sword of her's.' Mephisto answered as he picked up her broadsword.

Shiro then picked up the girl and brought her closer to the other.

'Then I will take her and raise her with Rin and Yukio.' Shiro added and the other knew the paladin wouldn't take no for an answer. Mephisto hummed in agreement, thinking that would be the best for her. As he looked at the young girl he couldn't help but feel something great would happen.

Out of nowhere, a golden ball with wings and a cross on it, started attacking Mephisto, attempting to bite him. Before it could have bitten him, his targeted victim grabbed his tail and held it far from his face in order to not get bitten by the menacing looking teeth...

'What the hell is this?' Mephisto yelled in panic as he tried to keep the 'thing' from biting his face, but it just kept coming at him.

'Oi! Are you trying to protect her?' Shiro asked the golden ball as he gestured to the girl in his arms. The golden ball turned to Shiro and looked at the girl in his arms and nodded it's body.

'Well, we aren't going to hurt her, so calm down.'

The golden ball seemed to understand and nodded it's body again, before it started to try to get loose from Mephisto's hand, in the end he got away by biting it which made his 'captor' yelp in pain and let go of the tail, as well as the sword.

'Then you can come with me and live with her...If you promise not to bite anyone else.'Shiro said as he has watched the thing nod once again, and then fly over to the white-haired girl, and snuggled up against her. He turned around and started to walk the way they came.

'Stupid golden ball...' Mephisto muttered, before picking up the sword and following after Shiro. Though, keeping his distance in case that thing comes after him again.

'I wonder what his name is...' Shiro said as he continued walking - completely ignoring how Mephisto was acting and the dark aura that was around him as well.

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Poor Tim. I hope he is okay. Well we will find out about Allen and Tim in the next chapter. The reason I made allen a girl is because if Rin thinks of Allen as a little sister and becomes very protective of her. Plus I think it would just be cute!

Well that is it for this story. I hope you guys like it. I will try to keep updating but it all depend how much I can do. Please Review and follow.

Ja Ne!