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, indoors, blush, nakagawa natsuki, looking at viewer, skirt, neckerchief, blue skirt, pleated skirt, green neckerchief, blurry background, sailor collar, ponytail, short hair, short sleeves, depth of field, white shirt, blue sailor collar, open mouth, standing, shirt