After summer break, Nico Bergström is suddenly the shortest boy in the class and the only one without a mustache, a voice change, or pimples. When he happens to ask out "Tall Lina," everything falls apart - after all, the girl absolutely cannot be taller than him. How will Nico survive seventh grade? How does Tall Lina really feel? Will Sabina ever get her period? Does Reimond’s miracle method for becoming a man in four weeks actually work? And what can be done about Hektor, the world’s most embarrassing PE teacher?