Blue Exorcist - Season 3 - Eps 8: Determination
Michael Gedoin, lost in his admiration and adoration for Lucifer, takes further action to ensure the success of his Elixir research. He devises a plan separating Rin and his team – leaving each member to fend for themselves. Although Rin faces off against a giant, grotesque Zombie in the underground laboratory's container, he hesitates to use his sword against it when he realizes the Zombie is a human corpse possessed by a demon. Yukio, Suguro, Shiemi and Konekomaru each must face off against their demons in the laboratory alone...
About Blue Exorcist

Title: Blue Exorcist
First Air Date: 2011-04-17
Last Air Date: 2025-03-23
Status: Ended
Rating: 7.901/10 (from 465 votes)
Language: JA
Seasons: 6
Total Episodes: 73
Network: MBS TBS CBC Gunma TV Tokyo MX BS11 Tochigi TV i-Television SBS
Genres: Animation, Sci-Fi & Fantasy, Mystery, Action & Adventure
Production Companies: A-1 Pictures, Aniplex, Shueisha, movic, dentsu, MBS
Synopsis
Humans live in the world of Assiah, demons in Gehenna. The two dimensions are not meant to interfere with each other, but demons still possess creatures in Assiah in spite of this. The humans who can fight these demons are known as exorcists. Rin Okumura is a boy who bears the curse of being Satan's illegitimate son. His foster father sacrificed himself to save him from demons. To avenge his foster father's death as well as to prove himself, Rin decides to follow the path of an exorcist and defeat his own father, Satan. To hone his raw skills, Rin enters True Cross Academy to train with other exorcist candidates.
Cast

Hiroshi Kamiya
Mephisto Pheles (voice)