"Bishop" has the psychic ability to influence a person's thoughts, rendering them vulnerable and unable to resist. Getting on his bad books is as good as asking for death.
The Bishop's past is a mystery despite the amount of effort put into trying to uncover his true identity. It was said that he had once used the identity of "Louie.D.Walter" but nothing concrete was ever confirmed. Those who might have known his secrets are believed to be dead.
Since the upheaval caused by the war, the "Bishop" made use of the chaos to control a huge number of followers and created the "Gaia Sect". Its headquarters is believed to be of the past, St. Bernard Cathedral, now known as the "Louie Cathedral".
According to some top secret information, "Bishop" might have already been in cohort with Night Blade before the elemental war even started. Many agents have tried to investigate but none has ever been heard from again.
Now, with the re-emergence of Night Blade and the "Bishop", everybody's resources have been focused on trying to unearth what their true intentions are.