1girl, blue_skirt, crop_top, fake_horns, freediving, gradient_neckerchief, grey_eyes, grey_hair, horned_headwear, horns, i-201_(kancolle), kantai_collection, long_hair, midriff, nanya, neckerchief, rudder_footwear, sailor_collar, skirt, solo, thighhighs, upside-down