The heroine of the novel Lili is 15 years old, she lives with her mother in a village in the Donetsk region. School life is stressful, relationships with a seemingly Native person are difficult, and in general, the girl's existence is not very positive. She dreams of meeting her own father, who disappeared before she was born, and changing her life. For the gray mouse, which the heroine considers herself, this would be happiness. The story might have been a typical story of rebirth and success, if not for a few special details. In fact, Lilya's name is not Lilya, and it is difficult to call her "gray". When you are different, you will not be able to merge with others.