I don’t know if I’ve been listening to too much Kpop lately, but she reminds me of one of the members from Girls Generation. The had an album called “Genie” which has a cover art of the girls in Air Force uniforms, but I don’t think this is a cosplay of that at all.
So if anyone has any idea, feel free to comment as usual! There will be a lot more of these from Japan Comiket 84. Thanks to 4chanatic for sending this in!