裏方でなにが起こったかはぼくにはわかんないですからねえ。
裏方の方々が作った本でちょっと描かれてましたが、多分あれはほんの一部分だと思います(^^;)

Well, that's because I didn't know what went on behind the scenes.

It's depicted a bit in a book put together by the people working backstage, but I imagine it's only a very small part in there. (^^;)