1girl, alternate_costume, ass, black_hair, black_one-piece_swimsuit, blue_archive, blue_sky, breasts, cloud, competition_swimsuit, dark-skinned_female, dark_skin, day, from_behind, halo, karin_(blue_archive), kihou_no_gotoku_dmc, large_breasts, looking_at_viewer, multicolored_clothes, multicolored_swimsuit, number_tattoo, one-piece_swimsuit, open_mouth, parted_lips, ponytail, shoulder_tattoo, sky, solo, swimsuit, tattoo, wading, yellow_eyes