Sixteen-year-old Raisa - yesterday's schoolgirl - sets sail through adulthood, taking with her illusions, a few stereotypes, a positive outlook on the world and a certificate of completion of the ninth grade. Her dream is to be independent, to manage her life like a navigator on a ship. But the ideal plan collapsed when she, doubting the correctness of her chosen path, failed the entrance exams to the technical school. The girl finds herself on board another ship and sails away on the waves of love, enjoying the calm and struggling with the elements of her first adult problems.