Petit Spirou, like all his family before him, has a career destiny all traced. When his mother announces that he will integrate the grooms school at the beginning of the new school year, Petit Spirou, with the help of his friends, will take advantage of his last days of class to declare his love to Suzette. And no matter how. They decide to live an extraordinary adventure.

When Spirou, supposedly a groom in a Palace, meets Fantasio, reporter scupper, everything starts very hard … and rather badly!