After two years of quiet life, the world of the main character returns to the danger with which she thought was over. To protect yourself now, you will have to remember how it was then .. The girl tells how she lost touch with the familiar reality, got to heaven, where she was offered an unusual job - to find the same losses as her. During her training with a mentor, she meets new people, one of them will become a friend for her, and she will place someone in the rank of an enemy. Not having completed a good training, the girl learns that her friend is in danger. What will end her attempt to save a loved one from death?