At the End of the Dangerous Run (S01E06)

Makina triumphs over the SUV corpse with help from Keisei. They uncover that the rogue priest is Akasha, a member of the Kougun cult who had gone into hiding due to his extreme beliefs about utilizing Corpses. To momentarily overpower Akasha, Keisei employs a cube containing the blood of deceased corpses as a protective barrier, forcing Akasha to retreat. Meanwhile, the Kougun cult is left in disbelief at Akasha's return and begins to consider strategies to bring Keisei back into their fold.