BUR #34236 has been approved by @nonamethanks.
create alias kei-san_(dandadan) -> muko_(dandadan)
So, these are two different tags for the same character. I'm not 100% sure which should be the main tag and which should be the alias, Muko is her real name, but according to the wiki it's never actually used in the manga (though that anecdote could be outdated at this point). I'm going with Muko as the main tag for now since it's her real name, unless anyone has an issue with that.
https://dandadan.fandom.com/wiki/Muko?so=search