1girl, arched_back, ass, back, bare_arms, bare_shoulders, black_one-piece_swimsuit, breasts, choyeon, from_behind, half-closed_eyes, large_breasts, long_hair, looking_at_viewer, looking_back, one-piece_swimsuit, original, parted_lips, poolside, profile, purple_eyes, shoulder_tattoo, sitting, skindentation, solo, swimsuit, tattoo, wet, white_hair