I watched the anime when it came out, and have been looking around for the manga, but it seems to be incredibly difficult to find. I’ve been able to track down scanlations up to vol 4 ch 24, and raws for vol 1 - 9 and vol 13. If anyone knows where to find the rest (preferably translated, but raws will do) please let me know.
While I did like the anime as well, I do think the manga is superior. (On the whole it’s darker, freakier, more dramatic and less goofy. The anime seemed to be adapted for a younger audience.)