ゲテル

Once an angel who commanded "concealment", Gethel's mind was crippled by madness, turning her into one of the Masters. Gethel is a mid-class angel of the fifth rank, her powers paling in comparison to archangels. Her eyes, on the other hand, are endowed with a unique ability that allows her to discover the truth regarding all things she casts her gaze upon. Those she wishes to see and those she does not; things no being ought to see and things she yearns to have never laid eyes upon, tracing all the way back to the source of it all: Gethel's sight reveals them without exception. Her burden far too large, it inevitably made the girl's mind yield to madness. [Source: MangaGamer]