1girl, beach, bikini, black_eyes, blush, bow, breasts, day, frilled_bikini, frills, hair_bow, hair_ornament, holding, holding_water_gun, kneeling, long_hair, looking_at_viewer, navel, open_mouth, outdoors, purple_bikini, purple_hair, sand, satsukitane_mikako, smile, solo, sora_no_otoshimono, swimsuit, watanabe_yoshihiro, water_gun, wet