A/N: I wasn't planning on updating today, but I opened my email and I saw a huge list of emails. Thank you AwesomeSaucelv8-san for making this a favorite and EnvyIsMySin-san for reading too. And Nano Code-san read my other one-shot. Thank you all!
So back to Miku and Luka now. I'm using the song Scissoroid here. Enjoy!

I don't own Vocaloid and parts of the plot are from the song Scissoroid (or –loid, Idk).

Miku watched enviously as Luka sang for their master. Why does Luka get to sing all the songs now? I used to be Master's favorite!

I"I can't tolerate it anymore!" she screamed in her soundproof room. "I'm happy to have a little sister and all. We used to sing together. You even told me that you wanted to be a diva like me. But I can't forgive you stealing my master, Luka!"

Miku sank onto her bed. "If I have to share my exclusive master, then I'd rather not have any sisters at all." Miku didn't notice the hot tears falling down her cheeks.

Her eyes wandered around her room and rested on a knife with a blue handle. She got up and grabbed the knife. "I'm sorry, Luka. If you're going to curse anyone, curse yourself. It's all your fault if you die."

"Ju-just be frie-nds," Luka said, her voice wavering. Tears sprung to her eyes. She looked up at her master. "I can't do it right."

Kaito sighed and patted Luka's head. "It's all right, Luka," he said smiling. "Just keep practicing. You're doing great."

"Tha-thank you master." Luka said.

"Why don't you have some rest now?" Kaito suggested. Luka nodded and walked off to her room.

Miku entered the room. She was hiding something behind her back. "Oh, hello master," she said, and walked the same way Luka had gone. Kaito saw something flash. Was that a knife?

Miku walked into Luka's room. She was sleeping peacefully on her bed. Slowly, Miku walked up to her bed. She held the knife above Luka's heart.

Miku remembered all the fun and happy times she had with Luka. "I want to be a diva, just like you!" Luka's voice swirled around in Miku's mind. Her hand faltered.

"I'm so glad to see you!" Miku flinched and quickly hid the knife. Luka's eyes were open. "You haven't visited my bedroom for such a long time, Miku. What'll you teach me today?"

Luka smiled widely. "I really appreciate you being my sister. You're so kind and cute. You're the best diva in the world!"

Miku felt a tear leak out of her eye. I don't want to kill her. But…

"Just kidding."

Miku's eyes widened. Luka had snatched her knife and now it was sticking out of her chest. Luka slowly pulled it out.

"Hey, Miku. Your duty's over now. I love master so much. He's my exclusive master now," Luka said, grinning evilly. "Good bye, Miku."

Kaito walked into Luka's room. He gasped and ran over to Miku's cold body. Who did-why…

He knew immediately who had done it. He ran to his room and grabbed the gun he kept hidden.

"Luka! I have a new song for you to sing." He yelled.

Luka walked up to him after a few minutes. "Here I am, Ma—" She stopped when she saw the gun in Kaito's hand. "Please, Master. It's all a misunderstanding. I didn't mean to kill her. It was an acci—"

Kaito pulled the trigger and the bullet embedded itself in Luka's heart. She collapsed and died instantly.

Kaito clapped twice. Rin and Len appeared. "Was that good enough?" he asked.

Rin frowned. "That was too quick. Let's retry it." Len nodded.

A/N: That was short. By retry, I mean they're going to kind of relive the life they just lived. So that means Rotten Girl, Grotesque Romance. That will be in the next chapter. I changed the scissors to a knife because they're not supposed to be vocaloids, just humans. I like making Miku suffer. Mwahahahaha (that's my evil laugh).

Thanks for reading!