On the surface this almost counted as a KareHika cosplay (aside from the colors) considering Aya's weapon and especially the white sash from the former (everyone else use a red sash)

However, I'm extremely annoying when it comes to this franchise and despite the jacket even matching the Hikari one, Hina isn't cosplaying her because she's carrying the shoulder sash on the wrong side and she's dressing the same type of pleated skirt used only by Karen and Claudine