No one knows that one moment you may be your closest sister who talks to you about everything, and the next moment you may be your enemy that delivers a fatal blow. Being betrayed by her sisters who lived and died together, how should she choose? When the huge energy exploded and everything was reduced to ashes, where was she? When she is reborn in an ancient mausoleum, wakes up on a freezing cold bed of ice, and in an unknown world, how should she choose?