What did ? Kill Yuki with?

It's... Mew. :(

No, scratch that. I saw Fyre Red's review and looked for a pic of her *Vocaloid*, and.. Tis.. dundun dun Tone Rion!
Who is she? Sorry, I only know famous Vocaloids like Miku, Rin, Len, stuff of the sort

This feels so much like a murder mystery.
XDDDDDD
No, I'm not sadistic like a CERTAIN killer, I just like that.

... It's either Gakupo or a girl.

Rui?
?
Gee, I am SO confuzzled.

And it's not Kaito. Darn, he was cute.. No, I dont like him that much. I like Icecream.

...And it's not Miku.
WHY? YOU SADIST KILLER? WHYYYYYYY? ;_;

I dunno much, so I'll take a wild guess and say Gakupo. Well, we know it isn't Lui..

Hm, it's either Yukari or Tone Rion.

I did a little research...

Oh... I see.

Piko is secretly a ninja. That is my only explanation.

Sigh. These clues are pretty easy to figure out, and I'm a Piko x Miki shipper.

... What? The USB was the giveaway.

Oh VocaKiller. Y U so crazy.

COMPLETELY UNRELATED: Cherrys is actually spelled as "cherries".

So... the others were all outside or something.

Simply lovely story so far! It's well written and has a intriguing storyline. I like how clever you are with the clues. Isn't it obvious who the killer is? I'm going to take a "wild card" and "guess" its Tone Rion.

Yuzuki Yukari is the killer, I think.