1girl, animal_ears, arknights, black_hair, bottomless, breasts, cat_ears, cat_girl, cat_tail, ears_through_headwear, hat, kochiya_(gothope), looking_at_viewer, lying, medium_breasts, official_alternate_costume, on_stomach, red_eyes, ribbon, rockrock_(arknights), rockrock_(before_singing)_(arknights), short_hair, sleeveless, solo, tail, tail_ornament, tail_ribbon