Deep Blue is the leader of the aliens trying to take over Tokyo, his identity is shrouded in mystery until volume 6 of the manga, in which it is revealed that, like the Blue Knight, he is part of Masaya Aoyama.
Deep Blue is the leader of the aliens, his identity is shrouded in mystery until volume 6 of the manga. These aliens are trying to take over Tokyo. He is part of Masaya Aoyama in the manga. This is like the Blue Knight. This was what it is revealed.