3girls, barefoot, bob_cut, breasts, comic, competition_school_swimsuit, flower, greyscale, hair_bobbles, hair_flower, hair_ornament, hat, hieda_no_akyuu, invisible, kawashiro_nitori, kousei_(public_planet), medium_hair, monochrome, motoori_kosuzu, multiple_girls, one-piece_swimsuit, optical_camouflage, page_number, school_swimsuit, short_hair, swimsuit, touhou, twintails, two_side_up