crowd, hibike! euphonium, hibike! euphonium series, kohei okamura, kitauji high school uniform, multiple girls, school uniform, 6+girls, kousaka reina, serafuku, brown hair, black hair, purple eyes, long hair, oumae kumiko, blurry, indoors, blush, skirt, neckerchief, looking at viewer, nakagawa natsuki, blue skirt, green neckerchief, pleated skirt, blurry background, sailor collar, ponytail, short hair, white shirt, short sleeves, depth of field, shirt, blue sailor collar, standing