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