This is the Japanese idol group "Immoralistar R".

Can you tell us about where you sourced these or how we can find any information on this group? "Immoralistar R" yields literally 0 results for me on Google. Like, a single reddit page comes up in Portuguese that clearly has nothing to do with this group.

Thank you!

We need video of these performers (if they actually exist as a group).

It seems they've already disbanded, so I couldn't find many results, but here you go.
(They're written as "インモラリスターR" in Japanese; if you're looking to search, you might find more results by searching with this.)

pixeldrain.com/l/u38abtLX

Found more of her
 

Took some exploring, but found more of this redhead guitarist

Bassist actually. :)

Still a guitar
 

i think it still qualifies as a guitar

While technically correct, using only the term "guitar" in a forum like this would confuse or mislead many of your readers. We think of Eric Clapton when you say guitar, not John Entwistle. Just sayin'

Don't think many people are counting strings while looking at those pictures tbf.

Guitar
 

Actually - Technically it is a Bass Guitar