Hello everyone! This is the first fanfiction I'm writing in my whole life, so it may be a little bad written from time to time (maybe the whole thing is bad written). ^^

In this fanfic' it's probable that I will differ from the original story because of the OC. Nevertheless, I hope you'll enjoy reading this one!

Oh, and by the way, I'm actually French so maybe there are a few mistakes in the text: don't be afraid and show them to me so I can learn from them. =D

From another world

Nota bene: the things that are written in parenthesis are just heard by the Spirit you're going to meet in a few lines.

Chapter 1: The Arrival

When a Spirit is asked where it comes from, it often says that he doesn't know. It seems to be aware of itself only on Earth. And never would he want to come back to its own world. This world, one could locate it in another dimension, parallel to the one in where the Humans live. This is a "dead" dimension that common Humans would have trouble to imagine. Space-time is a notion that doesn't belong to this world: there is no up, no down, no left, no right. Nothing is long, nothing is short. This is the world in where the Spirits live, more or less aware of their surroundings. However, at a given time, this order was turned upside down: interactions with another dimension began with some Spirits migrated from this world.

In this dimension where physical laws were nowhere to be seen, one Spirit was different. This spirit, which had the look of a high school student, was wandering in the Void. His expression seemed very sad. Why? This Spirit had the ability to control space in any manner whatsoever, but space was inexistant where he was living. That is why he was interested when Spirits began to disappear in another dimension. He was wondering if he could enter this world and if he finally could use his abilities. These are the questions he was asking to himself, questions that were answered by something.

"Should I enter this world? Those who went to it never came back.."

"(It'd be better than staying here forever.)"

"So you're saying I should give a try?"

"(Yeah, but be cautious. We do not know what we will find there.)"

"… Nevertheless, I guess I will go."

"(As you want. Anyway I'll be with you there so I can help you.)"

"Let's go then!"

On the rooftop of the school, Tokisaki Kurumi, alias Nightmare, had been facing Itsuka Shidou and theatening him to blow up the whole place with a spacequack while laughing. Shidou had then put his life at stake and had jumped of the roof, forcing Nightmare to save him in-extremis and to stop the spacequack. While she was still listening to what he had to tell her, the siren was yet heard, startling them.

"Tokisaki! I believed you had stopped the spacequack! Shitou shouted."

"I...I don't understand, that's not my action!" She replied.

"Shidou! A Spirit is about to show up in the city! The AST is already taking positions, hurry up! His sister Kotori shouted to him in his earplug."

"Roger that! Tokisaki, please release everyone right now."

"And why should I? I don't care about a Spirit coming here. I'd be even more easy." She said while laughing.

"That would be right a few time ago, but not know."

"What do you mean, Shidou-san?"

"The Spirit is gonna get killed for sure. The AST created new weapons and was waiting to test them. If you do nothing, you will be responsible for an innocent's death."

"...I..."

Behind her, the city was swallowed by an violet explosion that lasted about one minute. When it stopped, there was nothing anymore where the city used to be, except a large crater, in the center of which what seemed to be a young man was now standing. He was staring at himself as if this were the first the has been doing so, sometimes throwing glances around himself. He smiled and said:

"Here we are."

"(So? How are you? The same? Different?)"

"It's...wonderful! I can feel new things. All the things in the world can be sensed by me! It's as if I were filled with a new power!"

"(That's normal. Space do exist in this dimension. Many opportunities are available to us now.)"

Above him, the AST section was watching him and preparing for the intervention, or should one say his annihilation.

"Why is he talking to himself?"

"Would be the first time a Spirit heard voices."

"Anyway, get ready to attack!"

"Understood!"

The group load their weapons together, in order to end this quickly. The Spirit hadn't already noticed their presence, which had surprised them, and kept watching around him without a care for anything else. Shidou was urging Tokisaki to make a decision.

"So? What did you choose?"

"Tsk … Okay, you won this one." She said while putting down the barrier.

"Thank you. Now, we have to help him!"

"I don't think we have to. Just see."

"FIRE!"

A impressive quantity of missiles was fired to the Spirit, who looked up to the group of people when hearing the shout. However, the projectiles weren't stopped and reached their target. The impact caused an important explosion, which raised a great amount of dust that obstruated the vision for one minute. When cleared, nothing were to be seen in the crater, which surprised the group a little.

"Already finished? That was way too fast!"

"Must believe this was a weaker Spirit than usual."

"If only the other ones were that easy to defeat..."

"The other ones?"

Everyone turned round when hearing this voice, voice that belonged to the Spirit, which was now floating his arms crossed, watching them. That was not possible: they had seen him taking the missiles that were launched, but he didn't have any injury.

"Did you meet other Spirits than me here? What did happen to them?"

"…"

"(They tried to kill you. There's no way they didn't do the same with them.)"

"I think you won't answer me whatever I ask, will you?"

"…"

"So I've nothing to do here anymore. See you." He said, about to leave.

"(What?! You leave them without doing anything?!)"

"I have better to do than dealing with some 17-year-old girl. I've a whole new world, don't I?"

"(I guess you're right, but do you really think you'll leave like that?)"

"Of course, I..."

"One minute!" Someone shouted.

The Spirit turned round again, asking himself what she wanted, while she was taking a sword that was in her armor. What did she want to do against him, who just entered the world a few minutes ago. He began to speak:

"Okay. First of all, who are you?"

"I have no obligation to tell you."

"Nii-san, who's she?" He asked in the air.

"(She's Tobiichi Origami. And by the way, she's about to kill you.)"

"Nii-san? Still talking to nobody? Or hearing voices, maybe?"

"Why do you want to kill me, Tobiichi Origami-san?"

"Eh? How do you know my name, whereas you didn't before?"

"Still not answering me, do you? I don't like it, but I'll have to defend myself and maybe kill you if I'm forced to."

"You will not escape this time!"

Without warning, she dashed to him while holding a sword in front of her, obviously in order to finish with one shot. Nevertheless, the sword stopped straight itself a few centimeters before his forehead. Despite all the strength she put in it, the sword would never move even one millimeter. The Spirit still had his arms crossed and was looking at her while smiling, which was irritating her from seconds to seconds.

"Just stop it already, it's useless. None of your blows will ever touch me."

"Tsk! Is that how you pulled through the last time?"

"Not exactly. Now, if you may excuse me."

The second after, the Spirit had disappeared, letting the AST stunned. The time in which he disappeared hadn't lasted more than a blink! They looked for his localisation anew, without finding him though. Those who first had thought killing a Spirit very easily just had let him run away, and they couldn't even stop him from doing so. They also hadn't collected any useful information about him, apart from his looking: he had a common height, a black short hair, a dark long coat and heterochromatic eyes – light-bleu left eye and violet right eye. What they didn't know is that the Spirit wasn't very far from them and could look perfectly at them.

"(Tss, they didn't understand already, did they? Humans are idiot.)"

"Don't say that, I'm sure they were just following some orders."

"(I guess you're right. They do not seem to be able to think by themselves.)"

"I'm sure they aren't all like that. Give them a chance."

"(Do as you wish. You command, after all.)"

"Erm...Excuse me?"

The Spirit quickly turned around, surprised to see behind him someone he didn't detect. The voice belonged to a blue-haired young man, with approximatly the same size and a school uniform. Beside him a girl wearing a gothic dress and holding guns was standing.

"Are you alright?"

"Nii-san, say, what does really want?"

"(He seems to be honest. His name's Itsuka Shidou. And by the way, the girl's a Spirit and is called Tokisaki Kurumi.)"

"Nii-san?" Shidou asked.

"You seems to be honest. I'm alright, thank you."

"My my, another Spirit that can play with the AST, it's pretty funny." Tokisaki said.

"Not really. I just want them not to bother me when I'm testing my abilities. I couldn't do that back when I was in my world."

"Are you by any chance the Spirit who can manipulate space?"

"Oh, excuse me, I didn't introduce myself. I'm Kamigami Keiichi and I can indeed control space."

"I'm Tokisaki Kurumi." She said while bowing. "Greetings to the voice that talks to you too."

"(Voice... Is that all I am?...)"

"Don't upset him, he's not just a voice. He's a Spirit."

"Two Spirit in the same body?" Shidou asked.

"(Ow, the Human is more clever than the other ones.)"

"That's it. He seems to have taken a like on you. I wonder how you managed to do that."

"Why not come with me? For an example, at the high school. You'll certainly learn a lot about this world."

"… Maybe I'll think about it. See you then."

The air seemed to distord itself for a few second, then many blue lines criss-crossed the plan of the space near to his hand. He made a move of it tracing a circle that made the lines give way. He greeted them with the hand and went through the way he just had made, which closed itself after he entered it. Shidou said while smiling:

"The AST will not be able to trouble him if he can do that."

"Kamigami-san was powerless in our dimension, like me. But in this one..."

"In this one? He asked, curious.

"He's God."

"Eh?"

"I said he's God. Or should I say he has the power of a God. Nothing can touch him. And even if he does not look like it, he could tear someone apart by his only will."

"Scary... No weakness, so?"

"My my, did you really think I would disclose Kamagami-san's secrets to you, Shidou-san?" She said while chuckling. "Next time, I'll get you, remember that. Goodbye!"

She bowed and disappear in the sky. "A God-like Spirit, she said?" His thoughts were interrupted by his sister's voice in his earplug.

"Shidou, are you all right?"

"Eh? Ah, yeah yeah, I'm all right. Tokisaki-san left and Kamigami-san just wants to learn about this world. I don't think he's dangerous."

"Don't be kidding me. Nightmare just said he had God-like abilities. So it would be more sure to sea –"

"No! Don't even think about that! Just find another way to do so!" He urged to say.

"Tsk, what a closed-minded brother. As you want, I'll try to find something."

Shidou sighed. The next morning will certainly be very lively, as always...

That's all for the first chapter! =D

I hope that you liked it and that I didn't make too many mistakes.

Maybe you could think that my OC is a little overpowered, but I will show you later his weaknesses.

I'll try to make sure that this story is not going to be a "All is right! All is beautiful" story, nor one that kills the mood.

Please review! =)