After his injuries from his fight with the blue ?mu Yummy are tended to by Date, Eiji is convinced that Ankh did not create the Yummy but someone else who has his Core Medals did. Furthermore, Eiji realizes the monster's method of granting desires: stealing from others and giving to the host. Date and Shintaro head out on their own to find the Yummy as Eiji is forced to stay behind to recuperate.