So it's Halloween, and Miku hears a voice in the forest.
She follows the voice and meets 2 people, [Rin + Len] who play with her. Miku notices their shadows, and saw that they had the shape of two dolls she threw away. Pretty soon, the 'dolls' kill her.
ENJOY!

So creepy, right? Just so you Know, a rose signifys a heart in Japan.