The base camp of Fairy Tail

Y/n: Lisanna, I defeated the enemy. Erza is in a bit of a problem right now, I will watch over her. I could change my armor into something more practical since I am here, Re-quip Trunks. Much better.

Lisanna: I don't know, she looks quite happy with that expression on her face. (Thinking) I'm old enough to know what that means. Erza saw something that made her very happy probably his ..... (face becomes red)

Y/n: Oh no, she realized it.

Lisanna: It was probably the fault of that huge fire pillar that burned down your clothes.

Y/n: (Embarrassed) Yes it was an incident, I didn't realize it until Erza fainted in front of me. Please don't tell Mira about it.

Lisanna: Too late. (Points to a smiling Mirajane)

Y/n: Oh god, please no. Lisanna back to the topic, can you tell me what happened here?

Lisanna: Not much, but Grimoire Heart attacked the island and now Gildarts fights against an enemy who can manipulate gravity, you know the rest.

Erza: (Wakes up) This was a nice view I had. (Notices Y/n next to her)

Y/n: (Whispers) Just don't tell anyone.

Erza: (Stuttering as she remembers it) I...I wont. Who knows it already?

Y/n: Mira and Lisanna.

Erza: Mhmm. Ok we have to go and defeat the master of Grimoire Heart and get them of the island.

Y/n: Let's group up and attack them.

Rusty Rose : Looks like some of you survived.

Y/n: Who's this scrawny puke? I don't have time for this. (Teleports behind him) God Dragon's Holy Destruction Fist. (The enemy falls down unconscious)

Bixlow: Now that's an effective way of dealing with the enemy, just blast them at full force.

Totems: Full force, full force.

Freed: Looks like we weren't needed after all but we'll stay and help.

Bixlow: I will dispose of the body, man he looks roasted.

Shortly after

Y/n: Looks like everyone is here. Let's go to the ship of Grimoire Heart, Erza.

Natsu: I'm all fired up!

Grimoire Heart base outside

Natsu: So how are we getting up there?

Y/n: We can fly Natsu.

Gray: I will make a stair case, Ice Make Ramp.

Y/n: Nice Gray, ladies first.

Natsu: Let me fight him Y/n, I want to show him how strong I am.

Y/n: If you insist, I will help by giving you my energy.

Hades: You are Makarov's mages, you're not going to defeat me.

Natsu: Happy I need you to go inside and make sure it's not moving.

Y/n: Natsu why make it complicated when you can do it the easy way.
FINAL KAMEHAMEHA! (A big blast of energy flies trough the ship and out on the other side, detonating in the distance)

Natsu: (Astonished) I didn't know you could pull of something like this, the ship is a hollow shell now.

Frost: Y/n never does half a job, he could blow up the entire ship but that would kill Hades.

Y/n: I can destroy planets Natsu, a ship is nothing.

Hades: I can't believe the destructive power of Y/n is bigger than anything I have seen.

Erza: I'm really glad that you are on our side Y/n.

Y/n: You will be defeated Hades! You hurt our master and defiled the sacred land of Fairy Tail.

Gray: Ice Make Hammer!

Wendy: Sky Dragon's Roar!

Lucy: Scorpio!

Natsu: Fire Dragon's Sword Horn!

Hades: You can not beat me with that measly power. Now that I'm warmed up, it's time to get serious. (Attacks Wendy making her disappear)

Y/n: NO! No, not Wendy! (Falls on the ground as his Super Saiyan 2 form appears with no pupils in his eyes) I will desintegrate you Hades for what you did! Natsu It's my turn. (Y/n dashes forward punching Hades with too much force)

Erza: What happened? I couldn't  see anything he was too fast.

Natsu: No way, his arm pierced right through Hades body.

Lucy: (Scared) What, he killed him?

Gray: He is that powerful?!

Y/n: I'm sorry, I didn't mean to do it. I was too enraged because of Wendy.

Horologium: I'm up here. (She explains with relief)

Gray: Nice old timer.

Erza: (Relived) Wendy is alive.

Y/n: What, she is alive? (Falls on his knees) Thank god. (Powers down)

Wendy: What did I miss and why is Y/n so frustrated?

Erza: He eliminated Hades with his attack, it was an incident.

Wendy: So we defeated him?

Y/n: Yes.

Laxus appears out of nowhere 

Laxus: So this is the... Did I come to late or what happened?

Erza: Y/n killed Hades because his power was too high.

Laxus: So he went down with one punch. Sorry to hear it Y/n, it happens.

Y/n: I'm good, the important thing is that Wendy is alive and well. (Hugs Wendy) Let's get back to the camp guys.

Fairy Tail base camp

Makarov: What happened at the ship of Hades?

Y/n: I killed him by accident master. I'm deeply sorry. I thought he killed Wendy in front of me. So I punched Hades not knowing I was too strong.

Makarov: That's something you can not change. It happens, important is that you are all well. Why is Laxus here?!

Y/n: He wanted to help us defeat Hades but  he came 1 minute too late.

Erza: Now we have to attend the Injured first. Y/n you will be my first patient.

Y/n: Oh, okey Erza. (Erza leaves with Y/n in the woods)

Master: This year's trial is canceled now, deal with it.

Gray: We can still compete.

Laxus In front of Lisanna 

Laxus: You are real, how is death like?

Lisanna: I wasn't dead, how rude.

Erza and Y/n appear 20 Minutes later

Mira: So Erza you attended his Injuries?

Erza: Yes I looked all over his body, he had quite a few.

Mira: Oh sure he had. (Winks at Erza) I know that you two were kissing.

Erza: How did she know?

Y/n: It's Mira, we are talking about. She knows all the things that happen in Fairy Tail.

Erza: That's true, she finds out everything. At least we only kissed each other.

Makarov: We will prepare our ship to go back to Hargeon.

As dragon closes in on the Tenrou Island

Y/n: What?! Is that a dragon?! No, it can't be, Acnologia.

Makarov: WHAT?! NO WAY! Run to the ship my children! (Grows into titan) 

The dragon fires a magic attack at the place where the ship is, destroying it

Y/n: We can't leave you Master, God Dragon's Roar! (The dragon gets stunned) Damn I'm too weak to even hurt him. But there must be a way to defeat him or at least to safe us... I know how we can survive this. We have to use the Fairy Sphere, I found an old stone with the 3 strongest spells and Fairy Sphere can save us! I will cast the spell but we need to hold our hands together in order for it to work.

All of the guild members on the island hold each others hand as Acnologia fires an attack, the island disappeared

Year 791. A 12 year old boy named Romeo, a member of Fairy Tail, is looking at the see still waiting for his comrades to return