Rule 34 Dev - 1girl bird black_sailor_collar black_skirt blue_eyes blue_hair chain closed_mouth cloud day expressionless hair_between_eyes hanamoto410 hatsune_miku highres long_hair looking_afar railing sailor_collar school_uniform serafuku shirt short_sleeves skirt sky solo split_mouth swallow_(bird) swan upper_body vocaloid white_shirt|17181982701