Matvey, a good-natured IT guy, is hopelessly in love with the dazzling beauty Sveta. A relationship could have developed, but Matthew's extra pounds get up between young people. Sveta sees an overweight guy as just a friend. Matvey understands that his love will remain hopeless if he does not lose a few tens of kilograms. At the gym, Matvey meets a tough coach, Yulia. A difficult life situation forces Yulia to accept Matvey's offer, and become for him not only a coach, but also willpower, a supervisor, and then his best friend.