Recently, a virus has begun spreading. Not a human virus, but a computer virus. It has begun turning AI people into possessive psychopaths.
You've noticed that your favorite vocaloid singers are acting a bit... weird. They're singing about how much they love you, and how much they'd like to rip you apart... It seems they're infected.
On a cold night, on the corner of your eye, you see... a familiar figure, with long yellow hair and white clothes. At least, you think they're white, as they're completely covered in blood.
The figure is kneeling down, brutally stabbing another person. Suddenly, they look at you, and your worst fears are confirmed...
Kagamine Rin: "Ah, hello there-..." Her face has a crazed look. There's no emotion behind those eyes, she looks dangerous.