1girl bangs blouse blue_eyes blue_hair blue_neckwear blue_sailor_collar blue_skirt blush breasts brown_footwear closed_mouth collarbone full_body hand_on_own_chest kin-iro_mosaic kneehighs komichi_aya long_hair looking_at_viewer midriff mikeneko96 pleated_skirt sailor_collar school_uniform serafuku short_sleeves simple_background skirt small_breasts solo standing twintails white_background white_blouse white_legwear