S01E21 - Fires of the Apocalypse
Synopsis
Saki and Niimi decide to head to the Temple of Purity, as Kaburagi declares war on the Monster Rats of Japan, promising to eliminate them. But the Fiend approaches, killing several humans, and confronts Kaburagi. Saki realizes the Fiend looks like Maria. Satoru appears, and tells Saki and Niimi that they have to leave as soon as possible, telling them that even Kaburagi cannot kill a Fiend. Kaburagi manages to evade the Fiend's first attack, but is soon killed by him. Saki and the rest run, confronting a Monster Rat who tells them that their race will now be the new rulers, and that their "Messiah" (the Fiend) was sent from the heavens to save them. They kill the rat, and Niimi tells them he must split up with them and go to the Town Hall. Saki and Satoru make it to the Temple of Purity, where they learn that Saki's parents have already been there, and plan to release the Impure Cats upon the Fiend. They find Inui, who tells them about his team's failed mission to dispose of the Robber Fly colony, and his first encounter with the Fiend. He informs them that when he made it back to the village, he found the hospital burnt down and all the human infants stolen. It is then that Saki realizes that Yakomaru killed Maria and Mamoru, took their child and raised it to become a Fiend. He plans to raise the stolen infants as Fiends, and create a Fiend army that will wipe the humans off the face of the Earth and bring rise to a Monster Rat empire.