Jin Norizuki commands Schwarz Rose, a leading Prism Show unit. After Hiro of Over The Rainbow dethrones him as Prism King, Jin launches PRISM.1—a competition to crown a new Prism King independent of the reigning titleholder. He declares Schwarz Rose will battle rival agency Edel Rose in this event, positioning himself at the core of the narrative's conflict and cementing the agencies' rivalry.

His PRISM.1 proposal shatters the established hierarchy, driven by ambition to reclaim supremacy in the Prism Show world. The contest becomes his stage to reassert influence and forge an alternative path to the Prism King title, circumventing the framework dominated by his rivals.