In my historical spy thriller, there are five different characters named Miku that our protagonist has to fight. So initially, they're refered to as Idol Miku, Vampire Miku, etc. etc. etc. But then our narrator switches to calling each of them "Miku" in their respective fight scenes.
Right at that moment, a girl with teal space buns and a black leather jacket swung on a rope and jumped onto the remains of the mammoth.
Street Performer Miku.
“So you came,” Miku said to KAFU and James. “You guys stand no chance against me.”
So, how am I supposed to refer to our Mikus? Because writing each Miku's full title is kind of cumbersome, and I'm worried that if I call all of them "Miku" it will get too confusing.