It follows the anthropomorphic dog Gai-Luron (whose name can be roughly translated as "Jolly Fellow", which contrasts with Gai-Luron's generally apathetic behaviour), his girlfriend Belle-Lurette and his friend Jujube the fox. The plot sometimes involves Gai-Luron and Jujube reading their fan mail, which is almost always written by the same reader, a little boy named Jean-Pierre Liégeois, or else a friend or relative of his.