AkuDama

No, AkuDama isn’t another villain group. I’m good with the AkuYaku. Plus they are already huge, no other group could take over, and there’d be no point of another one.

AkuDama is a surname for all AkuYaku to use in case they are in a place where they need to identify themselves with a last name. AkuYaku do not have last names, only first names, to rid of their terrible pasts. But some places, AkuYaku need a full name and are required to have a surname. Because they don’t have one, Kōta-San, AkuYaku leader, provides this surname for all AkuYaku to use. They only use it if they have to though, since they don’t use last names unless they are required. That’s why all the AkuYaku characters still are seen everywhere with only their first names, because this is only used if absolutely needed.