“Beautiful, sweet, light,” is how any friend will describe Katya Lazareva. Even if one of her former lovers is called an acquaintance, because the girl left as a gift not broken hearts, but pleasant memories for the heroes of fleeting novels. Beautiful, sweet, light... but every person has a face that he never shows. So no one in Katya’s circle knows that more than anything in the world she is afraid of breaking her word. Fate has already punished her for this twice: the first time, depriving her of her family, the second time, of her friend and loved one. Katya has learned her lesson, but circumstances again force her to repeat the mistake. And how should she pay now? Life? When demons find a girl and transport her to their world, they urgently ask for help in solving a long-standing problem, the consequences of which are destroying the balance of Parallels, she understands that the stakes in her game with fate have increased sharply.