User summary: This book presents a simplified, lightweight version of the game system of 2020 J.U.G.; it is oriented toward beginners and offers an introduction to role playing. The book explains what a role-playing game is, offers a quick character creation method (with pregenerated archetypes), and simple and short game rules. The book also provides three complete adventures, ready to play: La Tour dans la Forêt Le Foulard d'Estaballa Le Trône d'Odalis