Nothing about Saitama passes the eyeball test relating to superheroes, from his lifeless expression to his bald head to his unimpressive physique. Alternatively, this average-taking a look guy has a not-so-average problem-he just can not seem to find an opponent strong enough to take on! To prevent a Demon-level crisis, Saitama and company head toward the action. Alternatively, even Class S heroes turn out to be no match for the Deep Sea King! So as to offer protection to the good citizens, our heroes will want to summon all in their courage and confront this threat!