crowd, hibike! euphonium, hibike! euphonium series, kohei okamura, multiple girls, kitauji high school uniform, school uniform, 6+girls, serafuku, purple eyes, kousaka reina, black hair, brown hair, green neckerchief, nakagawa natsuki, long hair, skirt, oumae kumiko, indoors, blurry, blue skirt, neckerchief, looking at viewer, ponytail, pleated skirt, blush, yoroizuka mizore, kasaki nozomi, sailor collar, short hair