プロメスティン

Promestein is one of the earliest angels to exist, since in one of her first appearances she claims to have given humans the power of fire. Though she is an angel certain circumstances put her at odds against Illias, namely her insatiable desire to identify and understand everything./

Her personality is what one would expect of a scientist: practical, intelligent, interested in nothing but to understand the world and the universe itself. She leads a group called the 'Seekers of Truth' who, like her, want to do nothing but further their research.