Do you know that each of the objects around us has its own character? For first-grader Katya, this is no secret. Her pajamas don’t want to sleep at all, her brush can start daydreaming right in the middle of a drawing lesson, the alarm clock can go counterclockwise, and the eraser is ready to heroically sacrifice itself. And, of course, they all care about how Katya will live her first school year, with its everyday life and holidays, difficulties and victories. Katya has to work on herself. Her diary doesn't want to get bad grades, and her sneakers are ready to train all night long so as not to let the team down in the relay race. Old friends (the mouse Fidget, the doll Glasha, the dog Faithful) continue to love and care for her. But they must stay at home. And new friends are waiting for Katya at school.