JJK: Phantom Dynasty unfolds in an alternate timeline where Satoru Gojo, Suguru Geto, and Shoko Ieiri are tasked with protecting Riko Amanai, a girl destined to be sacrificed to Tengen-sama—the entity upholding the barrier around Jujutsu High. While the duty is somber, Riko embraces her fate, eager to merge with Tengen-sama despite leaving her life behind. However, their mission takes a surprising turn when they uncover Riko's hidden lineage as a potential princess of Musutafu and stumble upon a mysterious family heirloom. This discovery sets the stage for a series of events that will alter Riko’s destiny—and the fate of all around her—forever!

(FYI: I made this for fun lol)