1girl, arms_behind_back, balloon, blue_one-piece_swimsuit, bow, bowtie, cropped_shirt, feet, green_eyes, hair_ornament, legs, looking_at_viewer, medium_hair, no_shoes, one-piece_swimsuit, one_side_up, open_mouth, original, phallic_symbol, pink_hair, pink_shirt, sailor_collar, sasaame, school_swimsuit, school_uniform, see-through, see-through_shirt, serafuku, shirt, short_sleeves, sitting, solo, star_(symbol), star_hair_ornament, straddling, swimsuit, swimsuit_under_clothes, thighhighs, white_bow, white_bowtie, white_sailor_collar, white_thighhighs