Lena went to study at the mathematical lyceum. New perspectives, favorite subjects in which the girl has excellent performance. But the seemingly cloudless future was darkened by the fact that Lena became an outcast in her new class. But she did not despair and found company among... informals. But in order to become one of them, Lena had to radically change not only her appearance, but also her behavior, worldview, and even have a fight with her boyfriend. Will the girl be able to accept her new self? And most importantly, will she like this kind of life?