crowd, hibike! euphonium, hibike! euphonium series, kohei okamura, multiple girls, 6+girls, kitauji high school uniform, school uniform, oumae kumiko, nakagawa natsuki, black hair, skirt, blue skirt, kousaka reina, yoroizuka mizore, serafuku, neckerchief, pleated skirt, kasaki nozomi, brown hair, indoors, ponytail, long hair, pink neckerchief, white shirt, short hair, shirt, sailor collar, purple eyes, twintails, green neckerchief, standing, green eyes, short sleeves, socks, hallway, looking at another, shoes, bangs, brown eyes, blue eyes, blonde hair, blue sailor collar, parted lips, medium hair