The heroine is a "cannon fodder concubine" who could not survive three episodes in the original work. After being bound by the [Counterattack System], she needs to complete counterattack missions in nine different palace battle planes. In every world, she has to break free from her original tragic death and rewrite her destiny. However, as she travels deeper, she discovers that the number one villain in each world - the regent/powerful minister/prince of an enemy country who is supposed to be her enemy - all have feelings for her that go beyond the setting, and seem to have common memory fragments...