Ok, you all want Erza and Juvia to be in the harem?... Ok, sure:

Erza:

The current guild master of Fairy Tail, when she found out about you leaving, she assigned a high priority mission to look for you, and has even gone out looking for you herself. Cared about you like a brother before you left (since you both were raised by Makarov from a young age), but ever since you left, her feelings for you grew by the day...

Juvia:

A young girl who, at first, joined Fairy Tail to be with her "Gray-sama". However, that seemed to changed when she met you, and ever since, you've noticed a shadow that follows you around alot. When she found out you left the guild, this information broke her, to the point she left to Margaret Town, where she lives alone, with members of Lamia Scale trying to help her.

That brings the harem up to 5 girls, and sorry, but I think that'll be the limit, as any more will be hard to write. Also, I'm making it so that Wendy thinks of you as her "Big Bro", where she looks up to you.

Now, before you continue to read this story, please read this bit first:

WARNING, This story has some inappropriate or mature situations and topics in it, if you feel uncomfortable reading a story like this, then please don't read it. If you are going to continue to read past this point, then please enjoy the story...

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POV third

After just barely defeating Jackal, Lucy was knocked unconscious for a while. As she begins to stir awake, she hears someone walking up to her. She looks up and sees you, stopping in front of her, offering her a hand to get up.

(Y/n): *panting* "... Hehe, looks like we survived, huh?..."

Lucy: *smiling* "yeah... Looks like it..."

As she's about to reach out to your hand-

???: "LUCY, STAY AWAY FROM HIM!"

Lucy: "huh!" *Stops reaching out and starts looking around until she sees you on the floor, bloody and missing your mechanical arm* "Wait, what!? (Y/n)!?" *Looks between you both*

The (Y/n) standing in front of her moves his hands before sighing.

(Y/n)(?): *Sighs* "Hey, I thought you said you'd keep him quite!"

Just then, a mysterious woman started walking up to the two, followed by a short fat guy.

Mysterious woman: "Sorry, but there's only so much I could do that won't kill him. Plus" *annoyed voice* "Gluttony is starting to get hungry" *points at the fat guy behind her*

Gluttony: *makes cute sad noise* "... Sorry..."

(Y/n)(?): *Body starts changing, along with voice* "Ah, it's fine, let's just get what we need and then we can go."

After the other (Y/n) was finished turning into a weird looking guy, he started walking towards Lucy, with a grin on his face.

???: "Hey there, little bitch."

Lucy: *shaking* "W-what do you want with us?"

???: "Oh, nothing too hard to answer, trust me. Now..." *Kneels down to her* "how about you tell us about how to bring 'Him' out?"

Lucy: "h-him?"

???: *Grabs her hair, slams her head onto the ground then lifts her head up to face him* "The Celestial Spirit King! Now-" *forces her to face your direction* "Tell us before he dies." *Turns to the woman* "do it."

The woman then lifts her hand up and, with her fingers turning into sharp blades, stabs both your legs, making your left mechanical leg break.

(Y/n): "AAAAAAAAAAHHHHHHHHH!!!"

Lucy: "(Y/n)!"

The lady then rips the blades off your legs, before she starts licking the blood on her finger blades.

Mysterious woman: "Mmm~ It's been days since I've last tasted blood~" *after licking her fingers, she turns towards the fat one* "Would you like to try, Gluttony?"

Gluttony: "Oh, can I eat the arm?"

As he grabs your arm with enough force to rip it off, Lucy screams out-

Lucy: "STOP! I'LL TALK!" *the three turn towards her while you're just barely conscious* *crying alittle* "T... The way to summon him is to... Have a celestial mage sacrifice a celestial key of a spirit they are close to, but it only works once... That's the only way... Now PLEASE, let (Y/n) go!"

???: *Smirks* "Sure... But remember, I said 'Before he dies', I never said I'd let him live."

Lucy stares, eyes wide open as the guy stands back up, telling the woman to force you on your feet (or foot, since one of them broke your mechanical leg).

Lucy: "Please, don't hurt him! Do what you want with me, just please, leave him alone!"

As ??? Continues to walk towards you, his arm turns into a sharp blade. Lucy, still injured from her fight against Jackal, tries to stand up, but can't.

Lucy: "PLEASE, STOP! I TOLD YOU WHAT YOU WANTED, NOW STOP, PLEASE!"

??? Then grabs your neck, lifting you off the ground.

???: "Say goodbye to Mr Pretty boy, Bitch!"

Lucy: "NO!!!"

...

...

...

Silence fills the room, as Lucy looks on in horror at the sight in front of her.

(Y/n): "!" *Blood dripping from the whole on your chest and from your mouth*

???: *Smirks as he stares at you*

Lucy: *too horrified to move or even breath*

After a silent moment, ??? Removes his arm out of your chest, and tosses you onto the ground.

???: *Still smirking* "hey, Gluttony~?"

Gluttony: "?..."

???: "CHOW TIME!"

After hearing that, Gluttony starts making his way to you, each step making his mouth open wider until even his stomach is opening up, teeth and all

He then runs right at you, with Lucy jumping in front of you. But before he bites her...

Familiar voice: "FIRE DRAGON ROAR!!!"

Gluttony had to jump out of the way, moving away from both you and Lucy to avoid the attack.

Lucy looks at her savior, realizing that it's Natsu, with Happy nearby as well.

Lucy: *with tears in her eyes* "N-Natsu..."

Natsu(Dragon Force): *small smoke and flames appearing and disappearing near his mouth* "Happy... Make sure Lucy and (Y/n) are ok..."

Happy: "Aye!"

Happy then starts flying towards you two, while Natsu starts walking towards them, fire erupting around him.

???: "Shit, it's the Dragon boy. What's the plan?"

Mysterious woman: "... Let's retreat for now. We got the info we wanted."

Natsu(Dragon Force): "LIKE HELL I'LL LET YOU! FIRE DRAGON IRON FIST!"

Natsu charges at them, but before he could hit them, the three jump back, with ??? Throwing an orb at him, creating a smoke screen.

Natsu: "DAMMIT!" *once he's able to see, he tries to look for them, and even smell them but can't* "YOU BASTARDS! WHERE ARE YOU!"

Happy: "Natsu! We need help!"

Natsu quickly turns around and is almost petrified by what he sees, to the point he begins to turn back to his normal self. He sees you on the ground, motionless, with Lucy crying, trying to help you along with Happy. Before he could move, the three hears the others close by.

Grey: *running up to them* "Natsu, Lucy, you two ok?"

Natsu: *panting* "... W... We need help!"

As the rest of Fairy Tail arrives, they are confused about him wanting help even though he's fine... Until they saw you...

Time skip

POV Lucy

After we took (Y/n) back to the guild, things... Did not end well after that... Wendy went missing after she went to stop the faces, but we got back together during the final battle against Tartarus. Sadly, after the battle, we found out that Makarov disbanded Fairy Tail for some reason, what's more... (Y/n) went missing. Apparently, he vanished before Makarov could disband the guild, with no trace of him at all... At least, until now...

One year later

POV third

A carriage is seen pulling up to a nice, quiet village in the middle of nowhere, with four people coming out after the carriage stopped moving.

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Sorry, but that's the end of this prologue, I hope you enjoyed it, and sorry if it seems pretty short.