Joker and his gang visit the gorgeous Kaneari Hot Spring for some much-needed R&R and plan to steal the Gorgeous Diamond on the way! But life's never easy for a phantom thief, and Inspector Oniyama, Devil's Fang phantom thief Cupid, and even Commando Satsuko get into the mix, creating a four-way free-for-all. When Cupid starts shooing his Love Arrows into the mix, things get even more wild.