The setup of the series is that a para-military group called Black Flag is formed and funded by April Imoto, aka Geisha, who inherited her father’s billion dollar empire after he was executed. One of the members of Black Flag is Raiden, a master of mysticism. Using his powers, he sees a young boy in trouble, fighting to escape Hades, and a purple gorilla who was the subject of numerous experiments to make him a genius fighting machine. Raiden senses and imbalance in the universe due to these events and Black Flag rescues both of these characters and begin their adventure together as a team.
EHT Comics 