Board Thread:Theories Discussion/@comment-5978352-20130111021938/@comment-110.159.36.203-20131016000242

If anyone happens to know Japanese, let me say that its useful. I know a Japanese website where ppl discuss theories. So far that website is the most useful one I came across searching for info on mothy series's. http://mb2.jp/_voc/398.html. From here, it's said that the key may be originated from a Grimm story called the golden key. I this story, a black box appears, so I believe the key is for opening the black box, the recollective music box in this case.