1girl, bare_shoulders, bikini, bikini_top_only, blush, breasts, brown_hair, closed_mouth, detached_sleeves, embarrassed, fingernails, hands_up, huge_breasts, looking_at_viewer, nail_polish, navel, outdoors, red_bikini, red_nails, ryusei_hashida, solo, standing, swimsuit, two_side_up, veins, veiny_breasts, veiny_thighs