1girl, ass, black_hair, blue_one-piece_swimsuit, blush, breasts, closed_mouth, competition_swimsuit, dark-skinned_female, dark_skin, hair_ornament, hairpin, half-closed_eyes, ijiranaide_nagatoro-san, kdtwifi, long_hair, looking_at_viewer, looking_back, nagatoro_hayase, one-piece_swimsuit, small_breasts, smile, smug, solo, standing, swimsuit, tan