Blast

Blast (ブラスト Burasuto) is a S-Class, rank 1, superhero for the Heroes Association. His whereabouts are currently unknown.

Appearance
He has yet to make an appearance.

Personality
Nothing is known of his personality, but as evidenced by Child Emperor's reactions, Blast has a tendency of not showing up to the Heroes Association meetings.

Alien Conquerors Arc
Blast is mentioned during the S-class meeting.

Abilities
Being the highest ranked hero of the Heroes Association, it can be presumed that Blast is incredibly powerful.