As Catrina and the mysterious priest battle throughout the encampment, Catrina's assistant gives shelter to a couple of young kids. He tells them a story about an Indigenous brother and sister who love each other very much, until a bright but evil angel tempts the brother to turn against and kill his family for their pagan ways. But when she awakens in the underworld, his little sister convinces the God of Death to let her return to Earth to act as their emissary... and to exact revenge for the loss of her family.

After the Montemayor and Koh-Madrid siblings enter a strange tower on the kaiju planet, they learn about its dimension-hopping nature and its connection to Earth. But these answers bring more questions as an unexpected being zaps them with energy that will supposedly grant them mysterious gifts. Before they can quite recover, they find themselves back in the company of their chaperone Lucas and under attack by massive canine beasts! Will they survive long enough to find a way home? enote beneath. As they emerge from a vast underground lake, they realize they've been transported to another world, full of super-sized creatures... and even bigger kaiju!

Guadalupe College has a slightly different spark than your average university: they teach and train chispas-humans with exceptional powers and gifts from the gods-in how to use those powers. A class of students has just arrived to be molded into a team, but not all of them get along. Meanwhile, in the shadows, a coalescing group of villains begins to pull together pieces of a plan that would make them unstoppable. To protect the world and what they love, the new group of freshmen must take on the mantle of the former generation of chispas and become the Thirteen.