It's really not subtle at all if you put April Fool's in the title.

First the fake promo, den this!
What next, some fake download site with a Touhou style rick roll content?

its supposed to be the cover of this http://www.youtube.com/watch?v=GQgP87apuOk

zeniselv said:
its supposed to be the cover of this http://www.youtube.com/watch?v=GQgP87apuOk

Gather round and watch a grown man cry

Oh god, the memories.
I cried that day.

This post and post #726266 are the same fake game.

Its fake official site is here.
http://snowgale.chips.jp/muyou/

There is a project to really produce this game.
http://snowgale.chips.jp/?page_id=11

I'm going to sue them for IIED.