Rin Okumura, a boy aiming to become an exorcist yet born the illegitimate son of the demon god Satan, advises his classmate Sei Godaiin, who begins to see demons. Despite Rin asking Ryuji Suguro and the other Exwires attending the Exorcism Cram School for a way to make demons invisible, he is unable to find a solution. Meanwhile, Rin is invited to dinner by Mephisto Pheles, the Preceptor of the Japan Branch of the Knights of the True Cross and director of the True Cross Academy. However...
A member of demonic royalty, Baal.
.عضو من الملوك الشّيطانيّين المعروف ببعل
Ich gehöre zur Sippe des Baal,
dem Königsgeschlecht der Dämonen.
Soy un Baal, de la realeza demoníaca.
Soy un Baal, de la realeza demoníaca.
L’un des sous-princes de l’enfer.
Faccio parte della stirpe reale demoniaca 
e sono uno dei Ba'al.
Um membro da realeza demoníaca, Baal.
Один из Баалов,
царей всех демонов.
เป็นหนึ่งในราชวงศ์บาลของปีศาจครับ