Master Therion`s official artwork.
Terion (テリオン, Terion), also known as Master Terion (マスターテリオン), is a demon in the series.
Therion is a dark god of Aleister Crowley's design, which is identified with the Beast of Revelation.
When the Aleph encounters Crowley, he says is angry that Lucifer will not allow him to have Sabbaths (orgies involving demons) and takes this frustration out on Aleph in the form of Master Terion. He is eventually defeated.
