1girl, arm_support, ass, barefoot, bikini, black_eyes, black_hair, blue_archive, blush, breasts, feet, full_body, long_hair, looking_at_viewer, lying, mask, medium_breasts, mouth_mask, on_side, osame, ponytail, simple_background, solo, striped, striped_bikini, sukeban_(smg)_(blue_archive), swimsuit