A nerd must fight powerful spirits and aliens all vying for the secret power of his “family jewel,” so who better to fight alongside him than his high school crush and a spirit granny?!

Momo has fallen into a cursed diorama that’s laid out like a giant game board. There, she meets a guy named Zuma—the same Zuma who stole Okarun’s family jewel! The two of them team up to retrieve said jewel after Zuma drops it in enemy territory. Now they’ve got to fight some frogs and a giant chef to get it back. Meanwhile, in the outside world, Okarun clashes with Zuma’s friends over how best to rescue them!