In the 23rd century, with the development of science and technology, the competition between human beings has reached a white heat. With the exception of some humans, who have undergone physical modification to become Cyborg (cyborgs, whose bodies have been partially mechanically modified) and cyborg (who have undergone biological modifications, abnormal humans...... The radiation zone left over from the world war has also begun to produce various uncontrollable mutations. This is a world where the fittest survive and the strong prevail. A few years ago, an assassination attempt was made against the powerful Sade family, and as a flaw in the family, her status was changed to "deceased" on the file. A few years later, with exactly the same look, exactly the same voice and fingerprints, Miss L, who was "confirmed to death", returned to the public's field of vision. Living in the shadow of her brother, she has never been favored, and finally emerges by chance. At the same time, the Chimera Research Institute's first-class dangerous experiment, which had not yet completed its commissioning, successfully escaped from prison at the coordinates where Miss L reappeared. …… The power is about to be reshuffled, and the adventures of the teenagers are about to begin.