Rule 34 Dev - 1girl arms_behind_back blue_sailor_collar blue_skirt blush brown_hair hairband highres long_hair looking_at_viewer nanase_narue narue_no_sekai neckerchief pleated_skirt purple_eyes red_neckerchief sailor_collar sakiecho school_uniform serafuku simple_background skirt smile solo star_(symbol) white_background|19243468413