As a guide to the contents of each chapter, musical notations were added before the chapter number. In "School Rumble", chapters marked with a sharp sign (♯) concern the main plot development focusing around Tenma and Harima, while side stories dealing with supporting characters are indicated by a flat sign (♭). The one exception to this pattern in the first series is the chapter that appears in "Shōnen Magazine Wonder", which uses the natural sign (♮). "School Rumble Z" uses the natural sign for every chapter. The manga volumes of "School Rumble" contain original bonus chapters that use no musical notation; these are normally one page in length, but the seventh volume spreads its bonus chapter over several pages with each page telling a self-contained story.