Hikarikit here with another story had the idea in my head and after writing I decided to post it. It's a Naruto My Little Pony:FiM Xover it will be mostly centered on my OC. I hope you will like it.

Disclaimer: I don't own Naruto or My Little Pony:FiM just my OC

"Hey" talking

'Hey' thoughts

"Hey" possessed voice

"Heus" Spells

Summary: What if six years before Nightmare Moon was released she was bored and decided to go to another world. What if she met a certain six year old white-haired Tsuki that was being beaten by the villagers? After taking control and killing the villagers she decided to use the child as a backup plan if she was ever defeated. But after spending time with him she decided to forget the plan as she loved the child as her own but as the years went by she loved him more than a son. How will this affect not only the Ninja world but also the Land of Equestria of someone having the same powers as Nightmare Moon?

Story Start

'Eleven thousand three-hundred and ten craters on the moon.' thought a certain Alicorn as she counted the craters again. Her coat is black in color with her horn and wings being the same, has teal eyes with slit pupils and the sclera were a lighter teal color, her mane and tail were a brilliant color blue with a grayish blue aura surrounding them with sparkles that represented stars. Who is this Alicorn you ask well it is none other than the Mare in the Moon, Nightmare Moon.

It's been almost a thousand years that Nightmare has been defeated by her sister Princess Celestia and was banished to the moon. Well technically half-sister since she was created from the dark forces from the moon and used Princess Luna as a host since she was vulnerable with jealousy and hate for the ponies sleeping in her beautiful night and awake during the day. Nightmare knew that the powers from the Elements of Harmony that sealed her in the moon are weakening but it will still be quite a while maybe another six to seven years if she had to guess.

"Nothing but craters and rocks here I'm getting fed up with all of this waiting!" yelled Nightmare as she slammed her hoof on the ground. She lifted her hoof and look at the small crater she created she kept looking at it until she sighed and said, "Eleven thousand three-hundred and eleven craters on the moon. I really need to get out of here but those blasted elements won't let me leave the moon besides it's not like I can use a spell to go to another world right?" silence was all she got before she smacked herself on her hoof. "I truly am an idiot." She told herself before getting up on all fours and her horn and eyes glowing before saying, "Creator tempore et spatio, Da mihi locum alium mundum ad faciem!"(1) when she was done a portal opened in front of her she saw what looked like a village with four heads carved on a mountain.

She was surprised that the spell work and decided to leave her body behind since it might alert Celestia that she is free. "Anima et corpus Unum sunt, dum petitur Seperate!" (2) as a transparent Nightmare Moon came out of her body as the body feel lifelessly to the ground. Nodding in satisfaction she flew towards the portal as it closed.

Konohagakure

When Nightmare came out of the portal and was surprised that the world had a lot of mana and from what she sensed none of those hairless monkeys, humans that's what they are called have no mana in their bodies whatsoever only another energy source but it wasn't as strong as mana. As she kept flying she sensed a huge mana energy spike coming from the center of a large group. She quickly flew towards the area what she saw shocked her to the core.

There was a small human, probably the same age of a young colt, being tortured by bigger humans. She saw that the young human has snow-kissed-white mane with a red streak, two-whisker like marks on both cheeks being red in color, and he has golden eyes. She grows increasingly angry for every kick that hits the young human. She saw that the young human has cuts and bruises and grows even angrier for that happening to him. She may be a being of darkness but even she knows to never hurt a youngling.

She noticed that the mana spike came from the young human and has a lot almost as much as her but it is uncontrolled and wild. Finally having enough of the abuse she flew towards the young human and went inside his body to control him.

Gaining control she sent out a wave of mana and it knocked the humans back. "Are you really that stupid I may be a being of darkness but even I know to never hurt a young child." She said as one of the villagers getting up heard and screamed in fright.

"The demon is free we are all going to die!" he yelled as the other villagers started running around like chickens without their heads.

Nightmare saw this and couldn't help but face palm herself for the stupidity these humans have but decided to have fun with them, "Yes I am finally free I should thank you human if it weren't for you the seal wouldn't have weaken enough for me to take control, let me thank you with your life." And with that 'his' eyes glowed as 'he' sent beams of mana towards the villagers and killed them all.

She sensed higher energies heading towards her that she decided to take the child's body away from here. She kept running until she got to a gate with a giant forest behind it and she jumped over it and went inside. She kept running until she sensed no one near her and decided to greet the young human but before she did that she decided to look at his memories to find out what happened to him.

Flashback

'I just had to be hungry right now I couldn't wait until nightfall.' thought a six-year old Shigure as he was being chased the villagers again they always did this on a weekly or monthly bases and he never knew why they always did this to him or Naruto well that was until they met the Kyuubi during one of their beatings. How Shigure ended up in Naruto's mind was a question not even the Kyuubi could answer. They found out that the Kyuubi was a female named Kura and she became like an older sister to him and a mother to Naruto. She even gave Shigure about two tails of her power to him as an apology for what has happened to him. Shigure just told her that it wasn't her fault that he was being hated and that fault was the villagers. Though when he gotten her power he gained a red streak on his hair and two-whisker like marks on both cheeks being red as well. Maybe that was one reason they called him a demon besides hanging out with Naruto.

"You will die today white demon then soon we will find the Kyuubi and kill him as well!" shouted one of the villagers. There were probably around 20 or 30. Most of them were villagers, and the rest were either ninjas or the ANBU that were supposed to protect him and Naruto from this sort of thing.

They were about to attack him, when one of the villagers said something, "WAIT!" everyone looked at him in question.

"What if he tells the Hokage? We know he favors the demons more." They stopped to think and realized that he was right. Their leader would sooner listen to the brat than them. Shigure had hope in his eyes that he might be able to get out of this alive but it was shattered when another one spoke.

"Don't worry, there's way too many of us for him to memorize all out faces. Though after we're done with him, he might not even be able to remember anything at all." That was all the people needed to hear as they started to torture him. About an hour had passed, but to Shigure it felt like an eternity.

They stepped back to admire their work. They started to cheer as they saw the completely bloody mess they did to him.

'I'm sorry Naruto, Kura it seems I won't be able to live pass tonight. I hope you both will have a happy life after I am gone.' thought Shigure as succumb to this wounds.

End Flashback

Nightmare couldn't believe that life that this young child lived, the tortures, the beatings, the hatred, the glares, and it was for something that he no control over. She started to think on how to use the child. She knew that child has mana and a lot of it compared to her own.

'Hmm I could use this to my advantage he already has a flicker of darkness inside him and if I play my cards right I can use him for when I'm released from the moon. Even the Elements cannot stop me and I will have my revenged on those sun-loving idiots especially on Princess Celestia.' thought Nightmare as she growled when she said Celestia's name. Nodding at her plan she went to greet the child in his mindscape.

Shigure's Mindscape

When Nightmare entered the Mindscape she saw that it was a dessert with a few dead trees and leaves around. She saw a crescent moon on the black sky, there were also white towers on the distance and sense the young child was there.(3) She decided to change into a human form so that her plan may work. In a flash of dark blue, gone was the alicorn and a woman appeared.

The woman has pale skin with black hair that reaches her waist and a tail with sparkles that represented stars and were transparent enough to see through, her eyes are a teal color with slitted pupils. She is wearing a purple dress that has two crescent moon marks on the side of her waist with a dark purple lining around them. She also has black colored sleeves that reach up to her arms and also arm bands with the crescent moon marks on them, she also has a black helmet that narrows in between her eyes. She also has a horn and horse ears and wings that are black in color.

She looked at herself and thought, 'So this is what I look like as a human, interesting.' and with that she flew towards the tower.

When she arrived to the tower she saw that Shigure was sleeping their without a care in the world that she couldn't help but smile a little before blinking at what she was doing, 'Why am I smiling he is just a brat that will help me conquer Equestria nothing more nothing less, though I have to admit he does look cute when he is asleep.' Before shaking her head to get the thought out.

As she was shaking her head she heard a whimper and looked towards Shigure and saw that he was shaking a bit with tears in his eyes. She quickly walked towards him and hugged him hoping that it would calm him, she noticed that the tears stopped but he was still shaking and decided to sing a song for him.

(Play Come Little Children –Luna Version)

Come, little children, I'll take thee away

Into a land of enchantment

Come, little children, the time's come to play

Here in my garden of shadows

Follow, sweet children, I'll show thee the way

Through all the pain and the sorrows

Weep not, poor children, for life is this way

Murdering beauty and passions

Hush now, dear children, it must be this way

Too weary of life and deceptions

Rest now, my children, for soon we'll away

Into the calm and the quiet

Come, little children, I'll take thee away

Into a land of enchantment

Come, little children, the time's come to play

Here in my garden of shadows

When she finished singing she noticed that Shigure stopped shaking and had his head on her chest snoring a bit sleeping peacefully. She smiled and decided to rest as well since the day had taken a lot from her.

When Shigure woke up he noticed that he was in a dessert with dead trees here and there, when he looked up towards the sky he noticed that it was night with a crescent moon.

"So this is the afterlife…it sucks if you ask me." he said to himself but he heard a feminine giggle behind him.

"You aren't dead this is your mindscape." when he turned he saw the most beautiful woman he had ever seen that he couldn't help but blush.

"Beautiful." Nightmare heard what he said and had a small blush on her face. Before she was sealed other ponies would run away from her in terror screaming monster, it hurt but it fueled her anger. For Shigure to call her that gave her a warm feeling on her chest.

"Wait so you said this is my mindscape and I am not dead? How?" asked Shigure curiously as Nightmare nodded.

"Yes it is and for you not being dead well I help you from those villagers when they tortured you. I took control of your body since I am just a soul and killed them then I brought your body to a forest that was behind a gate." She replied.

"But why did you help me I'm just a demon that doesn't deserved to be help well that's what the villagers always tell me." Said Shigure as he dropped his head a little Nightmare walked up to him and got on her knees and gave him a hug.

"You aren't a demon Shigure all I see is a young co-child who has lived a terrible life that I wouldn't have my greatest enemy live. Besides if anyone is a demon here it's me as all other po-people run from me in terror." said Nightmare as she gave a downcast look on her face.

Shigure saw this and hugged her back before yelling, "THAT'S NOT TRUE!" Nightmare looked at him with a shocked expression.

"You don't see me as a demon?"

Shigure shook his head, "Of course not will a demon help me from being beaten from the villagers? Would a demon sing me a lullaby when I was having a nightmare? Would a demon be so nice to me? No I don't think of you as a demon to be honest with your wings you like an angel to me, yea like an angel, a guardian angel." he smiled widely as he looked towards Nightmare.

Nightmare couldn't believe this young child no this young man doesn't see her as a demon. She knew that she had to train the child for her revenged but somehow there was something with the child that made her anger and hatred quench but she would still follow the plan no matter how nice or caring she has to be.

"So Shigure how about I train you I can sense that you have a different energy than those humans, but similar to my own." Said Nightmare

Shigure looked at Nightmare with a shock expression he knew his energy was different than everyone else's and he couldn't do a simple Bunshin Jutsu (Clone Jutsu) as least Naruto can make one but not him. Not even Kura knew what energy he had and she was a Bijuu who was alive during the time of the Rikudo Sennin.

"Wait you have a similar energy like me? How can I bring it out? And what is it called?" said Shigure excitedly as he ran up to her with stars in his eyes almost making Nightmare laugh but she restrained herself and calmly answered him.

"The energy is called Mana and it is an energy just like those people have but more potent and it's from the landscape and non-living beings such as rocks, but in some cases like you and me. We have our own Mana supply in our bodies that regenerates and grows strong over time that we train in it. And to bring out our Mana we have to be calm and collected but we will start tomorrow." said Nightmare as Shigure gave a pout at that, making her chuckle lightly.

"Ok we can start tomorrow but wait what's your name?" asked Shigure.

"Well I don't really have a name people just call me demon or monster." said Nightmare half-lying since other ponies just called her monster but she added the demon part to make Shigure loyal to her.

Shigure gave a small frown at that before he smiled, "Well how about we give you a name then but it has to be unique like you…ok what to name you?" said Shigure as he closed his eyes missing the blush on Nightmare's face.

"Hmm how about Tsukiyo? It means Moonlit Night?" Shigure suggested as Nightmare was testing the name on her tongue before nodding.

"I like it thank you Shigure it means a lot to me." said the newly named Tsukiyo before wrapping him in a hug which earned a blush from Shigure before returning the hug.

Tsukiyo noticed that Shigure was disappearing meaning he was going back to the real world. Shigure saw this and couldn't help but feel sad that he was leaving a new friend just when they just met. Tsukiyo saw this and smiled warmly towards Shigure and told him, "Don't worry Shigure we'll see each other tonight in your mind so that we can get started on your training in Mana ok." Shigure nodded with a big smile as he was gone from his mindscape.

What he didn't see was Tsukiyo grinning evilly before chuckling, "Everything is going smoothly I just have to train him then when the time is right take him and soon Equestria will be in an eternal night and Princess Celestia will be no more."

(1)-Creator of Time and Space, Grant me passage to another world to face

(2)- Soul and Body that are One, Separate until the task it done

(3)- Think of Hueco Mundo

Will Nightmare continue her plan and bring an eternal night to Equestria or will Shigure's innocent ways turn her from her revenge? Let me know what you think. Like it? Hate it? Review or PM please