What is this video?

[akeno-yuki.livejournal.com]

Hi, I've lurking here for quite a long time.
And I have a quetion: what is this video? An opening? A trailer? R2 spoilers?

http://youtube.com/watch?v=sDLkS6AkP58&feature=related

EDIT:
Thank you all the people who answered^^
It's a fanmade video XD

Comments

[nokiirat.livejournal.com]

it's a fanmade video. the song is the opening to persona -trinity soul-...i forget the artist name.