Ulyana Morozova lived the ordinary life of an eleventh grader. Preparing for final exams, the upcoming prom, minor school conflicts and life failures - all this was suddenly replaced by a series of dangerous adventures in an alien and strange world filled with magic. But the worst thing lies ahead: the girl is given the responsibility of saving an entire people, and returning home is not possible until Ulyana fulfills the required conditions. Thus, fear of exams suddenly gives way to fear for one’s own life, and worries about finding a partner for the ball degenerate into experiences of falling in love for the first time with a guy who belongs to another world.