i'm confused, why did i get one with my copy and where do i use it? i can't find any discussion or guide about it, the store page doesn't say anything about it, and it just starts without asking for the key. i'm at a loss

so when i start the game the little square Magical Diary icon loads in the middle of the screen very very briefly before the game closes. To the point that it isn't running at all anymore. I verified the files and it says 35 will be reacquired but then nothing happens and uninstalling and reinstalling doesn't fix it. wanted to replay this but i'm not sure how to fix this. I tried opening from the folder too, the safe mode and the gl mode too, all responded the same....

If the game won't start, has graphical glitches, or won't display anything on screen, this usually means it had trouble detecting your video card. To work around video problems: go to the game's install directory (Properties->Local Files->Browse

Seriously? When?

Who else is hyped?