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.
All citizens,
please stay clear of the area.
.يُرجى من جميع المدنيّين الابتعاد عن المنطقة
Alle Anwohner werden gebeten,
dem Konfliktherd fernzubleiben.
Les habitants sont priés
de ne pas approcher des lieux.
I cittadini sono pregati
di non avvicinarsi al luogo del...