Rule 34 Dev - 1girl bags_under_eyes beach bikini black_bikini black_hair blue_archive blue_sky breasts cloud day hairband halo highres long_hair looking_at_viewer o-ring o-ring_bikini official_alternate_costume outdoors purple_eyes sand sitting sky small_breasts solo swimsuit ui_(blue_archive) ui_(swimsuit)_(blue_archive) yellow_halo zeradok|19772033346