Infernal Insects
Obi goes over Hibana's research, and learns that the artificially-created Infernals she dissected all had traces of insect DNA in them. Shinra and Arthur's investigation at the 1st continues, and they finally get their first lead on a culprit.
Aired 31/08/2019EP 8 - Infernal Insects

Fire Force
Year 198 of the Solar Era in Tokyo, special fire brigades are fighting against a phenomenon called spontaneous human combustion where human beings are turned into living infernos called "Infernals.” While the Infernals are first-generation cases of spontaneous human combustion, later generations possess the ability to manipulate flames while retaining human form. Shinra Kusakabe, a youth who gained the nickname Devil’s Footprints for his ability to ignite his feet at will, joins the Special Fire Force Company 8 which composes of other flames users as they work to extinguish any Infernals they encounter. As a faction that is creating Infernals appears, Shinra begins to uncover the truth behind a mysterious fire that caused the death of his family twelve years ago.
(Source: Official Website)