2girls, d, blonde_hair, blue_neckerchief, blue_sailor_collar, blue_skirt, blush, brown_hair, green_eyes, hair_ribbon, hand_in_another's_hair, hands_up, hibike!_euphonium, kitauji_high_school_uniform, kotomozou, long_hair, looking_at_another, looking_back, multiple_girls, nakagawa_natsuki, neckerchief, open_mouth, pleated_skirt, ponytail, purple_eyes, ribbon, sailor_collar, school_uniform, serafuku, shirt, shoes, short_sleeves, simple_background, skirt, smile, socks, uniform, uwabaki, white_background, white_footwear, white_shirt, white_socks, yellow_ribbon, yoshikawa_yuuko