Note: This is my first Vocaloid fanfic (I have 4 other fanfics up right now. 3 for Lucky Star and 1 for Nichijou) This fanfic will be spread out over at least 5 or 6 chapters in total.

Rating: Rated PG-13 for intense violent moments later on and also for brief strong language.

From Concert to Chaos

On Saturday July 10, 2010, the Vocaloids held a live concert at the Tanabata Festival in Hiratsuka, Kanagawa. It was a very festive time for all. Festive, that is, except for two rogue Dark Vocaloids. You see, Miku Zatsune and Rin Arakawa had been dating Mikuo Hatsune and Len Kagamine, respectively. But their relationships didn't last long.

Within a week or two, the boys became disillusioned by the girls' rotten behavior, and they broke off their relationships. But unfortunately, Zatsune and Arakawa were convinced that Mikuo and Len's respective sisters, Miku Hatsune and Rin Kagamine, were somehow responsible for them breaking up. And they decided that the time had come to get revenge.

Friday July 9, 2010, 8:48 pm

While the Vocaloids were making the final plans for their concert at Tanabata the next day, Zatsune and Arakawa were finalizing their plans for attacking Miku and Rin during the concert. They had decided that it would make more of an impact if they did it during the concert.

"Okay, so right after they perform 'Po Pi Po' together, we'll swoop in and take them by surprise", Zatsune explained. "That sounds like a plan to me", Arakawa agreed. "They need to pay for telling the boys to break up with us!", Zatsune raised her voice angrily, slamming her fist on the table. "I agree with you, they do need to pay", Arakawa replied casually, leaning back in her chair.

"What's the matter with you, Arakawa? Where's your anger? Where's your drive?", Zatsune demanded, astounded at Arakawa's indifference towards this matter. "You see, Zatsune, unlike you, I have the power to store and contain my anger until I absolutely need it", Arakawa explained. "Storing your anger. Brilliant!", Zatsune exclaimed, "I remember several other of our companions have that power as well".

"And by storing and saving my anger for tomorrow afternoon", Arakawa continued, "I'll inflict maximum damage on my opponent". "Can you show me how you do it?", Zatsune asked. "Sure, I'll show you later", Arakawa told her. "But let's practice our evil laughs first", Zatsune explained. "Good idea", Arakawa agreed, "If we're gonna be evil we may as well do it right". And with that, the girls then let out a series of maniacal laughs, that shook the little hut they were in.

10:12 pm

Meanwhile, the Vocaloids residing temporarily in a hotel in Hiratsuka. And the hotel was only about 10 kilometers (6.21 miles) away from the park where they would hold their concert. And it was a nice hotel too, with comfortable suites, a fitness center and an indoor pool. Anyway, getting back to the story. The group was in the meeting room of the hotel discussing the plans.

"All right, listen up everybody", Miku called out, "Right now we're going to go over our plans for tomorrow afternoon". But apparently, only a few listened at first. "HEY PEOPLE! Shut your freaking yaps and listen!", Mikuo shouted into a megaphone, "My big sister is trying to speak here!". That definitely got the attention of the rest of the group.

"What the hell was that about?", Len demanded. "Yeah, why'd you have to use the megaphone?", Rin grumbled. "Sorry guys, I had to get your attention somehow", Mikuo told them. "I think you went a little overboard", Miku admitted to her younger twin brother, then turning to the rest of the group explained, "Well, anyway now that we've got your attention. It's time for one last overview of the game plan".

"Has everyone practiced their songs?", Miku asked. "Yep, all set", Len and Rin confirmed. "Yes, I have as well", Luka explained. "And so have I", Kaito answered, then nudging Meiko (who had fallen asleep) whispered to her, "Mei-chan. Wake up". Meiko snapped awake and called out, "HERE!", causing the other Vocaloids to giggle, while Kaito put his hand to his forehead in exasperation.

"Meiko, we're not taking attendance here!", Mikuo told her rather sternly, "Have you practiced at all this week, I hope?". "Of course, I have", Meiko replied. "OK", Mikuo responded then turning to Kaito asked, "Kaito, can you please make sure that Meiko doesn't drink tonight?". "Will do, Mikuo", Kaito told him. "I can look after myself!", Meiko protested. "Not if you're drunk as a skunk", Luka interrupted.

"Wait a minute, have you two practiced at all?", Neru questioned. "Of course, we have, Neru-chan", Miku told her, "Have you and Haku-chan practiced". "I know I have", Neru explained. She then turned to Haku and asked, "Hey Haku, wake up girl". Haku immediately bolted awake and screamed, "32!".

This caused all the others except for Neru to fall over laughing. "No, no, Haku. Miku and Mikuo want to know if you've practiced like everyone else", Neru explained to her, with a clear 'Are you drunk again?' look on her face. "Sure I have", Haku told her, "You and I are performing Tsumanne".

"Neru-chan, make sure Haku-chan stays sober tonight, all right", Miku pleaded. "Yes, ma'am", Neru raised her voice, giving her a salute. "No need to be a showoff, Neru", Mikuo warned her, "All right, now everyone make sure you all get a good night sleep". With that, the group all seperated and went back to their respective hotel rooms.

Author's Notes

Chapter completed on Thursday January 19, 2012

Tanabata - a huge Japanese festival held for a few days around July 7th (7/7).

1 kilometer is equal to 0.621371192 miles

Yes, I understand that the Hatsune's and the Kagamine's may or may not be relatives. But remember, the only things that are canon in Vocaloid are voices and appearances.

DISCLAIMER: I do not own Vocaloid. Vocaloid belongs to Yamaha Corporation, Crypton Future Media, and all respective companies.