DISCLAIMER: I DO NOT OWN MIRAI NIKKI/ THE FUTURE DIARIES

Note: Advanced apologies for the OOC's. It cannot be helped. Come on! I don't own this, I'm just writing about it.

Anyway, this is my first Mirai Nikki fanfic. It's about the twelve diary users fighting against twelve more diary users (from another dimension). It will not be a third world Yukii vs second world Yukii. Most probably it will be OC. So it's like a Yukii's team versus the other team kind of battle. So this is AU. Sort of. Well, I hope you enjoy!

Other changes here is that; Deus won't be looking for someone to take his throne because he is not dying or anything. He has appointed 12 diary users to keep an eye on the world. They're sort of like observers like Akise but with their different personalities, it's expected that not everyone does their job right. Also, here, a god from another world will challenge Deus' power. So that's where it starts.

And this is the Fourth World. I want to start over where everything is fresh and in scratch. So everything that happened in the anime will be from the First, Second and Third Worlds.

If you do not agree with the changes and the AU world this is, you can stop right here. If you cannot handle OOC's and OC's, you can also stop right here. Thank you.

PROLOGUE:
Deus Ex Machina and Mur Mur, have been challenged by another god on another world. (In here, Deus isn't looking for someone to take his throne). The challenge is to test the wits of the twelve diary users that Deus had entrusted his 'power'. Deus accepts and has gathered everyone for a meeting.

Yukiteru Amano (The First)- Random Diary.

Yuno Gasai (The Second)- Yukiteru Diary.

Takao Hiyama (The Third)- Murder Diary.

Keigo Kurusu (The Fourth)- Criminal Investigation Diary.

Reisuke Houjou (The Fifth)- Hyper Vision Diary.

Tsubaki Kasugano (The Sixth)- Clairvoyance Diary.

Marco Ikusaba and Ai Mikami (The Seventh)- Exchange Diary.

Kamado Ueshita (The Eighth)- Blog Diary.

Minene Uryu (The Ninth)- Escape Diary.

Karyuudo Tsukishima (The Tenth)- Breeder Diary

John Bacchus (The Eleventh)- The Watcher Diary

Yomotsu Hirasaka (The Twelfth)- Justice Diary.

The first one arriving was no other than the Eleventh. Upon his arrival, he quickly inquired why, Deus ignored him saying the other users should be present before the discussion. Later, the Twelfth, Third and Eighth arrived as well. Bacchus told them that they should wait for the other users before the discussion starts. Although, he tried to inquire information from them first. The three knew none about it as well.

"Maybe one of us is wrongly using the diaries!" Exclaimed the twelfth.

"Mine's the Murder Diary. Killing won't be wrong." justified the Third, purposely pissing the Twelfth.

"I- It doesn't tell you to kill!"

The Tenth and the Sevenths came afterwards. Breaking the tension of the two who are arguing. Bacchus repeated his inquiring of information but sadly, the three also knew nothing about it.

The Fourth, Fifth and Sixth arrived.

"Hey Mur Mur, do you know what this is about?" asked the Fourth.

"We'll tell you when everyone is here." Mur Mur said, repeating what Deus told Bacchus. Kurusu nodded and just waited.

"The others sure are taking their sweet time getting here!" complained Marco. "Didn't Deus say it was an emergency?"

"They'll be here." Mur Mur said, shrugging.

It wasn't that long that they heard a woman laughing ever so loud. The Ninth. Everyone's attention turned to her upon her arrival.

"Ninth, where is the First and Second?" Bacchus inquired.

"Like heck do I know. I'm not their babysitter!" She yelled.

"We saw you with them the other day." said Marco. "At the campus."

"The other day. Today is a different day, idiot!"

Everyone sighed. She doesn't know either. It's been a habit of the other two to come late. Deus decided to start without them.

"Mur Mur, just notify them after." said Deus.

"You got it!"

"So Deus, what is this about?" Bacchus, again, inquired. Deus was glad he had enough patience for this.

"I will be sending all of you in another game. A battle against another team." he explained.

Ai and Marco exchanged looks. The Eighth's brows furrowed. Bacchus stared at Deus. The Kurusu cleared his throat after crossing his arms, his eyes intently looking at Deus, it was a serious matter. Surely in a game death is involved.

"You're sending us to die?" he asked.

"I'm sending you to fight." Deus corrected.

"Is their justice involved?" asked the Twelfth. Eyes pierced through him. "What?"

"Where's the justice in sending people to die in a game?" asked Uryuu. Her eyes' glare towards the Twelfth was sharper than the others.

"W- Well if Deus has a good reason. Why not?"

"I have been challenged by another god from another dimension. To test if the twelve diary users I have entrusted, are worthy to be a future diary user." Deus added. Now he's got everyone's attention.

"Y- You could've rejected it!" Kurusu shouted.

"Why should I? When this could be amusing." Deus said. They couldn't figure whether he was joking or not. "If your team wins this battle, you will keep your diaries. If you lose in this battle, you will not only lose your diaries but also your memories about it."

"N- No way!" cried Ai.

"You're enjoying this aren't you? Forcing us into death battles?" asked Uryuu.

"Hey Deus, is it possible to forfeit?" asked the Sixth.

"Yes. But your fate relies on those who didn't. If all of you forfeits, you automatically lose. If a few stayed, then your fate lies within their success." Deus explained. "This is a teamwork. See how your diaries work together and how its users work together."

"I don't really see the point in playing this game. We didn't abuse our diaries." announced the Tenth.

"Abusing the diaries does not concern this game. It simply wants to test your worth of having a diary." Deus answered.

"In short, we don't have a choice but the participate and hope that we win this battle." said the Eighth, concluding the results of the meeting. Everyone was downcast, but it was the only solution. To fight. To win.

"What happens when we die? Is there a chance we'd be revived when our team wins?" asked Kurusu.

His question was a priority. Everyone turned to Deus, wanting to know the answer. If they die and their team wins, will they be able to see the results of the battle? Will they see another day? Or they just died for the team and not have a future?

"Yes, there's a chance. According to this game's rules, if your diary is broken, you are still alive. But, you will not have a replacement diary until the battle ends. It will be your choice to stay in the battlefield or to leave." Deus replied. "You can choose to prioritize your life and your diary."

"Or both!" Mur Mur added with a cheery voice, hoping to lighten up the atmosphere. But it did't help. Everyone was serious.

"We'll work in this together, right everyone?" asked the Twelfth.

"Of course we will. Be sure to win and not lose." Bacchus said cockily. "So when does that battle start? What are the rules and procedures?"

"It starts in three days. Be ready by then." said Deus. "Your only goal is to wipe out all other twelve diary users who will fight against you. Once all of them are dead, you have already won. There are no time limitations and you can use any method to kill them."

"Well then.. let's see how good they are." the Third said.

"I'll see you in three days then!" said the Fifth and faded.

"Same here. Don't die before the game starts!" said Marco as he and Ai also faded.

"Tch. Brats." Bacchus mumbled as he himself faded.

When everyone had gone, Deus prevented the Ninth from leaving.

"What? I've got work to do." she said grumpily.

"Notify the First and Second. They might lead you to victory." he ordered and the woman squints at him.

"Why does it have to be me?"

"You were seen spending time with them. Longer than the rest."

"What kind of reasoning is that?!"

Deus sighed and waved a dismissing hand at her. Mur Mur floated near her, telling her to just be happy with the responsibility. Pushing the Ninth out. When the place was empty, Mur Mur approached Deus with a worried look.

"Are you planning something?" she asked.

"I bet on Yukiteru Amano to win. But in order for him to win, he needs to survive." he stated and Mur Mur quickly understood.

"You want the Ninth to protect him. But how can we rely on her? There's always the Fourth and even Eleventh."

"Because other than the Sevenths and Eighth, everyone else were his enemies on the other worlds."

"Didn't she try to kill him too? Should I count?"

Mur Mur wanted to justify the situation, if they should really trust the terrorist their future. When they ad other options. Deus knew she was just worried. But there's nothing much to say other than, she fulfilled her promises to everyone in the other world. Making her a promising person to surely protect the First.

"What about the Second? She can protect the First."

"She can. And so can the Sevenths. But for now, that is my only move. I want the First to figure everything from where I tell him to start."

'So sending Ninth was his first move.' Mur Mur thought. 'I hope the First gets the message right.'

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This is just a prologue. Hope you enjoyed!

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