The series "PEN15" is an experimental comedy about the lives of thirteen-year-old teenage girls, played by adult women. Best friends Maya and Anna regress back to childhood and try to survive among real modern teenagers. Their characters are modest and insecure girls who have just entered seventh grade. They are fascinated by their new "mature" classmates and do everything they can to become like them. They have to learn how to apply makeup, do hair removal, and, of course, kiss.