both: https://e621.net/post/index/1/naka08042000 and https://e621.net/post/index/1/hazukikai
are the same artist.
Stuff from both artist names (on e621) is found on their pixiv: http://www.pixiv.net/member.php?id=21886

After some research I found that naka08042000 may be their FA name. I can't confirm, I don't have an FA account.

Not sure if this should be an alias or implication.

An alias is the right thing to do if it's the same thing, hence the name.

Next time try using alias/implication forms (https://e621.net/tag_alias/new or https://e621.net/tag_implication/new) because they can be easily tracked by admins and won't get lost after some time. I checked FA page and submitted alias for you in forum #149596

Like the others have said, what you are looking for is an alias. Aliases are used when two things are the same thing, and we want to make sure both tags end up being treated like the same thing. An implication is when having tag 1 means it has to also have tag 2. So for example, brown_hair will always also have hair, so brown_hair was implicated to --> hair awhile ago. So that's how to tell the difference between an alias and an implication.

In any case, this artist is verified to be the same and the alias is approved. And thanks Granberia for doing this, since that made it easier and much appreciated it. *tips hat*

Thanks for the info. I never did one of these before. I was thinking it would be alias but wasn't quite sure.