JoJo's Bizarre Adventure follows the story of the Joestar family across generations, from the late 19th century to modern times. Each season focuses on a different descendant of the Joestar bloodline, all of whom possess a star-shaped birthmark and share the nickname "JoJo." The first season covers Phantom Blood and Battle Tendency arcs, featuring Jonathan Joestar and Joseph Joestar as they battle supernatural forces using the power of Hamon (Ripple) to defeat ancient vampires and pillar men. The series is known for its unique art style, dramatic poses, and over-the-top action sequences.