Rule 34 Dev - 1girl blue_sailor_collar blush brown_eyes brown_hair closed_mouth curly_hair greco hibike!_euphonium highres kitauji_high_school_uniform looking_at_viewer neckerchief oumae_kumiko pink_neckerchief sailor_collar school_uniform serafuku shirt short_hair simple_background smile solo upper_body white_background white_shirt|16701968088