Yes. But it's been a bit controversial as some fans felt the ending was rushed or didn't meet their expectations. However, it's still a completed series.
I don't have the specific number off the top of my head. But you can try searching on popular manga platforms or asking manga enthusiasts in online communities. They might be able to give you a more precise count.
The CSM manga has ended. It had a definite ending that either satisfied or left some wanting more. But regardless, the series has completed its journey in the manga world.
The unique characters of Ed, Ed and Deets are what make the fanfiction interesting. Writers can explore their relationships in different ways, creating new storylines that might not be in the original source. It's exciting to see how different authors interpret these characters and the situations they can be put in.
You can try fanfiction platforms like Archive of Our Own (AO3). It has a vast collection of fanfictions from various fandoms. Just use the search bar and type in 'Ed, Ed and Deets' and it might show relevant stories. Another option could be Fanfiction.net, although the tagging system there might require some more precise searching.