A pack of monsters calling themselves the "Clan of the Seafolk" arrive on the shores of City J intent on invading the land. When the hero sent to fight them is defeated easily by the Deep Sea King himself, Saitama and Genos head for the city to help.
I may be the lowest ranking at 38,
،قد أكون المصنّف الـ38 والأخير
Obwohl ich auf Platz 38
ganz, ganz unten bin,
J’ai beau être 38e
et dernier de ma classe,
Sarò anche al 38° e ultimo posto...