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