Hokusai Azuma  

Kyouju, The Professor, 東 北斎

The Professor, also known as Hokusai Azuma and Kyoutarous adoptive father and Minamis father, is a leader in a terror group that releases glowing fish into the world. He was the main antagonist during the first part of the series. His special ability to create illusions using his ESP powers makes him formidable.