1girl, alternate_costume, arm_tattoo, ass, bare_shoulders, blue_archive, blue_sky, breasts, competition_swimsuit, dark-skinned_female, dark_skin, day, earrings, from_behind, hair_between_eyes, halo, jewelry, karin_(blue_archive), large_breasts, long_hair, looking_at_viewer, looking_back, number_tattoo, ocean, one-piece_swimsuit, outdoors, ponytail, purple_hair, sideboob, sky, solo, stud_earrings, summer, swimsuit, tattoo, very_long_hair, wading, wet, yasojima_nejiro, yellow_eyes