Several years have passed since the war that engulfed the world. A small country in the north, at the mercy of the interests of the major powers, still has a war-torn country and its people.
Elena, a girl with cat ears, begins working at a mansion where the seriously ill and injured who are unable to move their bodies are finally gathered. What awaits Elena is a harsh reality in which the value of life is shaken. Even so, the passion of Elena's belief in the preciousness of life and the possibility of life will eventually spread to the people around her and to the whole country, and become something big.

This is the story of a girl who becomes a great light in a reality where the future is as uncertain as the deep darkness, and who will eventually change the welfare of the nation.