One of the 12 White Angels. He is known as Lector the Pure White by the Holy Empire. He rose in power after influencing the Emperor, who seeks for long life, through Astrology. In the end, he led the Emperor to his own death in the North Ice zone of Albion in the Castle of Palladium or Paradium.
[Source: Wikipedia]
Like the other 11 white angels, Lector is obsessed with physical perfection, especially when it comes to himself, going completely mental when Aurthur manages to put a scratch on his face.