1girl, ahoge, ball, beachball, blue_eyes, blue_sky, breasts, casual_one-piece_swimsuit, cleavage, cloud, cloudy_sky, covered_navel, earrings, holding, holding_ball, holding_beachball, honkai_(series), honkai_impact_3rd, jewelry, kiana_kaslana, kiana_kaslana_(herrscher_of_flamescion), long_hair, looking_at_viewer, one-piece_swimsuit, outdoors, ponytail, sky, solo, swimsuit, tongue, tongue_out, tsuume, very_long_hair, wading, water, white_hair, white_one-piece_swimsuit