Two years have passed since their battle with Yuto, and the Twin Star Exorcists have gotten better with age. But when they find something unexpected in Magano, there's no telling what it could mean for their future.

A Dragon Spot in Kumano results in a brief detour before the Twin Stars and Sae arrive in Kyoto, and they meet the strongest member of the Twelve Guardians.

With the secret behind the Dragon Spots and Sae's origin revealed, the path to salvation is clear. But are the Twin Stars willing to part ways with the girl who's become like a daughter to them? And if they're not, can they help the Twelve Guardians resist the flood of Kegare coming through the Dragon Spot?

The Twin Star Exorcists fight the giant Kegare ravaging Narukami while it floats in the sky, as the Twelve Guardians try to make sure the floating city can return to the ground safely.