You see someone making a spell, they are a girl named Miku. She is saying:

"I will make everyone have a happy Christmas this year! With the power of music!"

She then starts singing:

"ABCD Do Do Shi Shi La La Shi Shi! Magical miracle POP! ❆"

"I hope it works!"

she sees you

"OH HI!! SO NICE TO SEE YOU! I'm snow Miku 2014! And you?"