1girl, o, alternate_costume, bare_legs, blanket, blue_eyes, blue_one-piece_swimsuit, breasts, collarbone, covered_navel, frog_hair_ornament, full_body, green_hair, hair_between_eyes, hair_ornament, hair_tubes, impossible_clothes, kochiya_sanae, large_breasts, long_hair, lying, miso_inpakuto, old_school_swimsuit, on_back, one-piece_swimsuit, school_swimsuit, single_hair_tube, snake_hair_ornament, solo, swimsuit, touhou