After his father Jonathan's death, George Joestar II relocates to La Palma in the Canary Islands with his mother Erina, later declaring his feelings for a young Lisa Lisa and training as a World War I aviator. In alternating chapters, a present-day teenage detective also named Jorge Joestar investigates a murder in the town of Morioh, only for the case to spiral into a journey through Stand users spanning JoJo's wider timeline. Published for the series' 25th anniversary, the novel treats both storylines as parallel, explicitly non-canon detours from the main manga.