Note: The following happens after anime ends and it occurs when Kuroneko is in Kyosuke's school
Chapter 1 – My little sister can't be a Vocaloid!
"I don't get why I'm even coming along." Kyosuke said. "Well because I'm going to buy a lot of stuff at this con." Kirino said. Kirino saw Saori and Kuroneko and waved to them. They waved back. She dragged Kyosuke to them. He was always getting dragged into his little sister's crazy schemes. Kyosuke saw a sign. It said Vocaloid Con 2012. He knew what Vocaloid was. Well he thought he did. He thought, Vocaloid is a voice synthesizer. It has nothing to do with little sisters! He had the bravery to ask why they were here. Kuroneko answered, "Well a week ago Kirino and I were arguing about Vocaloids. I said Luka was better than Miku. Kirino got mad and now we are at this con to confirm that Luka is better than Miku." "Luka better than Miku, you've got to be kidding me. Miku is the most popular Vocaloid out there. She even has an append version and she is getting an English voice bank Luka doesn't stand a chance against Miku." Kirino said it all making Kuroneko angry. Kuroneko charged a Kirino and Kirino charged at Kuroneko. But Saori stopped them as usual. Then a message was broadcasted throughout the con, "We will be having a contest and the winner will receive whatever Vocaloids they want voice bank and a secret prize." Kuroneko and Kirino stopped and ran.
"Where are they?" Kyosuke said as he stopped running and Saori was right behind him. He was panting. "They're over there." Saori said as she pointed to the stage. A man walked on the stage. Kirino was at one stand and Kuroneko was at the other. Seriously when will they stop competing?
"Hello I'm Jun, the host of Vocaloid Trivia. We picked to people randomly out of the one hundred people that entered this contest and they are Kirino and Kuroneko," the man said, "Ready to begin girls?" They nodded their heads. Music started playing. They both hit the buzzer and said, "Alluring Secret Black Vow!"Ding, Ding, Ding. The next song played. "Bad End Night!" Ding, Ding, Ding. It's weird how they say the answer at the same time.
They both cleared the first level which was name the song. Kyosuke was amazed. They played about twenty songs and Kirino knew them all. He looked too left of Kirino. He noticed she had bought a Vocaloid little sister game. Kyosuke thought, why am I not surprised? The man yelled, "Pass! Pass! Now, next round name that song writer!" The man hit a green button and a song played. They both hit the buzzer at the same exact time, they shouted, "Mothy!" Ding, Ding, Ding. Another song played. It was a cool song; well that's what Kyosuke thought. It started out, I=Fantasy. They hit the buzzer so fast it was like lighting had struck it. "Hitman!" Ding, Ding, Ding. Kyosuke thought, they even pay attention to the song writer. Why? Did they know there was going to be a contest?"
Nobody could decide the winner. Not even after ten bonus questions. Jun came on the stage and said, "It's just beautiful how to girls can know so much about Vocaloid. They both deserve the prize!" Kuroneko got the Megurine Luka software and Kirino got the Hatsune Miku software. They exited the stage. "Hey Kuroneko I challenge you to see who can make a better Vocaloid song." Kirino said. "You're on!" Kuroneko said with a smile on her face. "Hey Kirino didn't you get two prizes?" Kyosuke asked. "They said we should open it when we set up the software on our computers. They said it's supposed to make them seem more alive." Kirino replied.
The con was over and they were at home. Kyosuke was in his room sleeping. He knew Kirino would stay up all night trying to make a better song then Kuroneko. Slap! Kyosuke woke up to see Kirino on top of him. "What do you want?" he asked her. "I have a problem I need you to come in my room." Kirino demanded. Kyosuke said okay and followed her into her room. Kirino opened the door. There sat a girl with blue green hair in pigtails. "I set up the software and opened the extra prize and she appeared. She is Hatsune Miku," Kirino explained, "I don't know why the host planned this but he did so now I'm making Hatsune Miku our little sister." Kirino smiled. Kyosuke thought, no, no. My little sister can't be a Vocaloid!
