A/N: This is my first Fairy Tail Fanfiction. Plenty of SPOILERS! This starts during the S-Class Mage Trial. Natsu isn't a part of Fairy Tail (yet), she (yes SHE!) lives on Tenrou Island (with Zeref, Mavis and formerly Igneel). She knows that she is an Etherious and is Zeref's Little Sister. Due to the fact that she has the capabilities to wield Zeref's Black Magic, she can see Mavis (Zeref can see her too, instead of just sensing her). Natsu is physically 10, but is chronologically over 400, she ages SLOWLY. Igneel watches/teaches Natsu when Zeref is away on business, that is until July 7th, x777 in which the dragons disappeared. Due to being an etherious, the dragonification antibodies were rendered useless in Natsu, but Igneel still went into her body to prolong his life. Natsu has a dragon form! (I'm totally OP-ing her, simply if you don't like, don't read)

About everything that has happened before this point… It happened, sans Natsu's part in it, replace Natsu with an older (~18 y/o), stronger Romeo. Happy is with Romeo. Oh! and Romeo can't eat fire and doesn't eat as much as Original Natsu.

This is another idea that popped into my head as I was reading other fanfiction… I don't remember which ones though…

Disclaimer!: I obviously do not own Fairy Tail, if I did, then I would know what happens next.

Also, some/much of the dialogue is from Fairy Tail, english dubbed.

The Etherious of Tenrou Jima

Evergreen and Elfman has just narrowly escaped a ferocious giant boar like monster.

"Don't you dare start thinking I'm interested in you just because of what I said to Mira," Evergreen said after pushing Elfman off her, "I was only trying to throw her off her game, not expressing any real desire to hook up with you, BoneHead!"

With a confuzzled (confused + puzzled = confuzzled) look on his [Elfman] face, he asks, "Where is this coming from?" but continues, "Gotta hand it to you, that was pretty smooth. It's hard to believe that a nice girl like you came up with such a naughty trick."

Evergreen replied with a frown, "You make it sound so dirty!"

A rustle in the bushes in front of them catches their attention. Out walks a young man in a black robe trimmed with gold and a white sash. He had onyx hair and eyes, and was wearing a circular necklace.

Behind him was a petite child with long salmon pink hair and charcoal eyes holding onto his robe leg. Her front bangs spiked out, but stayed low due to the weight of the hair and had fringes that framed her face. She also had a fairly long, thick braid that trailed out behind her. She wore a scaly white scarf as a hair band, bandages around her chest (She physically 10 people, there's nothing there yet, it was simply an author's choice), a gold trimmed black vest, a similarly colored waist cape, a belt with a round silver buckle, a white knee length pair of leggings with black ribbons on the cuff, and black sandals.

Next to her, was an light purple colored exceed. The exceed had emerald eyes, purple black-tipped ears, a similarly colored tail. She was wearing brown shorts, a green shirt with a yellow collar and a red ribbon.

(I'll try to draw this out and post it on my deviantart account. Username is MimiJester!, but if not, just picture Natsu's original outfit, but the bottom skirt-like thing goes mid thigh, and the pants underneath goes a little above the knee and is fitted. If you've seen Aladdin from Magi, her hair is like that, but more feminine).

"People? I'm confused, why have you come to such a desolate place?" the man asked worryingly, "We was under the impression that this island was uninhabited besides us."

Elfman yells at the man, "Well you were wrong pal!"

Evergreen follows with, "You are trespassing, only members of our guild are allowed here."

"We're trespassing?" he asks. "Forgive us, we didn't know this island was controlled by a guild."

"It is! Our—," Elfman started.

The little girl behind the mysterious man spoke up in an angelic voice, "But we've been living here for as long as I can remember, and Onee-chan said it would be fine to stay here, she says she gets lonely alone."

"Well, you can't, it is our guild's sacred land, and only people bearing our guild's emblem are allowed to enter!" Elfman yelled while starting to approach the man.

"NO! STAY BACK! If you value your life, don't come any closer to me," the man raised an arm in halting position.

"IS THAT A CHALLENGE!" yelled Elfman

"No, Onii-chan doesn't want to fight. He is warning you to prevent possible and needless deaths," spoke the little girl.

"Run, NOW! Natsu," that was all that was said before a wave a black energy started to build up. Only a few moments had passed before that energy engulfed the man, and the ball of black energy expanded around him. Elfman and Evergreen noticed this and started to try to run away from the mysterious energy. The little girl, now revealed as Natsu, ran up to them and pushed them out of the range of the sphere, as it swallowed her. The exceed flew away.

Once the energy disappeared, so did the man and Natsu. "He's gone," said Evergreen.

"You sound disappointed…" Elfman stated with manliness.

(Romeo is in the S-Class Mage Promotion Trial, however, he doesn't meet Zeref and Natsu).

~Elsewhere on the Island~

"Why won't this world accept my presence, will I always be hated?" The man questions, putting one hand in front of him.

Natsu grabbed the outreached and with her two tiny ones, "don't say that Zeref-niisan, I accept you, and Mavis-neechan does too. The other etherious do as well."

Zeref gave a half smile, gently placed a hand on both of her shoulders, looked her straight in the eyes and said, "Natsu, with the appearance of this guild, I need you and Jade (Natsu's Cat/Exceed) to hide, Ancologia is approaching."

"I understand."

"I as well," said Jade.

"This will be the last time we will be seeing each other for quite a while. Remember that you are only allowed to use the magic Igneel taught you, don't tell anyone your age or what you are, to them, you're human... And try to tone down the destruction. And no transforming into a dragon. Also, when you go to the main land, ask to join the Fairy Tail Guild. It's Mavis's guild."

"Yea…."

"This will be a farewell. I love you Natsu." He says, giving Natsu a hug.

She returns it, "Me too Nii-san. Love you too." (Sibling love, NOTHING MORE!)

The two of them split paths, not knowing when their next encounter will be.

Natsu flew to the only other place she knew would comfort her besides her brother, the top of the Tenrou Tree. There, she sat with Jade, observing the battles of below.

Mavis appeared in front of the pair, "Did Zeref left?"

"Yeah…."

"You'll see each other, I know it."

Natsu wiped the tears that were starting to form, hugging Jade closer to her chest, "I do too."

Mavis disappeared from sight as the tree started to collapse. Jade grabbed Natsu and they started flying towards their house.

(I'm going to skip explaining the battles because everything happens as cannon, replace Natsu's role with Romeo, minus the black scarf and Wendy's inability to heal him after the battle with Zancrow.)

Something during Fairy Tail's battle with Acnologia, Natsu and Jade were rendered unconscious. Mavis casted Fairy Sphere on the Island, and Tenrou Jima vanished off the face of the planet.

The Etherious of Tenrou Jima

*Spoilers*

v

A little observation from the Fairy Tail series…. Spoilers

I don't think Natsu has Acnologia's arm because Acnologia still has his right arm, it was the left that was cut off by Igneel. Natsu's bandages are on his right arm.

I don't think Natsu has an etherious form, because when Zeref revived Natsu, his body didn't have any markings or anything on it. I think Natsu is already in his true form, only his memory and powers were sealed in the Book of Zeref.

Correct me if I am wrong, but I don't recall Hiro Mashima every saying that END was evil, just that he was Zeref's most powerful etherious, so I don't think Natsu will be any different that he is now, he may just remember some of his memories with Zeref and get his power back!

~`.`~

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