1girl, o, ahoge, alternate_costume, asakura_toru, blue_neckerchief, blue_skirt, blush, collarbone, idolmaster, idolmaster_shiny_colors, iwawa, light_purple_hair, looking_at_viewer, midriff_peek, nail_polish, neckerchief, pleated_skirt, school_uniform, see-through, serafuku, shirt, short_hair, simple_background, skirt, solo, wading, water, water_drop, wet, wet_clothes, wet_hair, wet_shirt