Basically, Klan and Michael ended up having sex at some point in this side-story doujinshi, first with Michael in Zentron form and again later with Klan in Micron form. There's male AR and straight shotacon in the first chapter and just plain lolicon in the second. The manga is untranslated and censored, found at
http://g.e-hentai.org/g/49189/5cab164043/
Now, as I stated in the AR section in the 'Unknown AP Manga' thread, I'm working on a 'Rewrite' of Dancing Skull's first chapter, but not rewriting the entire story as much as just making the dialogue something plausible between Michael and Klan. Here's all I have thus far.