As Twilight goes deeper into darkness, she is lost in her own descent. Going deeper into the Royal Castle which was taken over by the Shadow of Chaos. Betrayed by her own teacher, Princess Celestia, she must find her way toward the heart of the castle. Her friends are no where to be found. Finding a note that only tells her that the friends she knew, may be changed forever. Everyone she loves is in grave danger. All because of her. She must fix this large error that she has created. The shadow she has unleashed. Losing her memory she will go through the descent into darkness... (Story line is based on actual game)