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?
Seigen attacks Yuuto, which proves useless. Yuuto fatally wounds Seigen who casts a barrier around the Twin Star Exorcists and the fainted Mayura. Seigen resolves to blow himself up; however, Rokuro and Benio escape from inside the barrier, which again Yuuto congratulates. Seigen is saved minus one arm and Rokuro manages to land a punch on Yuuto who is shocked. He then announces that he will wait for Rokuro's answer (whether he will join Yuuto on the dark side) at a place where there are precious memories for the both of them: Hiinatsuki Dormitory. Seigen and Mayura were hospitalized: Seigen undergoing surgery and Mayura still unconscious. Jissama has received information that the Twelve Guardians has been mobilized to destroy Yuuto and he gives Rokuro a package that Seigen had been wanting to give him. Inside, there is the black exorcist uniform that Seigen wore. Rokuro wears the uniform and announces to Benio that he will defeat Yuuto even with the Twelve Guardians mobilized.
Subaru of the Twelve Guardians thinks that Benio and Rokuro need to understand each other better, but the Twin Star Exorcists aren't convinced and insist on conventional combat training. The debate comes to head in the form of a game of hide and seek: if Benio and Rokuro can track Subaru down before sunset, she'll provide the training they're asking for.
When the kids from an elementary school soccer team are suddenly transported to Magano by Kegare, Rokuro joins Benio, Atsushi, and Shinnosuke to go to Magano and save them. But in the middle of the battle, painful memories overwhelm Rokuro, and he's unable to fight. Just then, one of the highest ranking Exorcists, the "Vermilion Bird" of the Twelve Guardians, Ikaruga Shimon, appears.
Benio has moved into the Seika dormitory, which puts her into conflict with Rokuro after their unpleasant first encounter. Soon a strange individual arrives at the dorm clad only in a pair of underpants. This turns out to be the leader of all exorcists, the Chief Exorcist Tsuchimikado Arima. After inviting the members of the dorm to the Five Mirror Chamber, he asks Rokuro and Benio to battle in front of exorcist authorities from around Japan. Benio wants to test Rokuro's strength, but he still wants nothing to do with being an exorcist.