nasan (coldtime),blue archive,kayoko (blue archive),1girl,accordion,black choker,black hair,black horns,black skirt,blush,choker,demon horns,grey halo,hair between eyes,halo,highres,holding,holding instrument,horns,instrument,long hair,long sleeves,looking at viewer,multicolored hair,music,playing instrument,red eyes,see-through clothes,see-through shirt,shirt,skirt,solo,white hair,white shirt