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.
Once it bites,
my little moray here never lets go!
!فور أن تعضّك، لن تُطلقك الموراي خاصّتي أبدًا
Beißt meine innere Muräne erst mal zu,
lässt sie so schnell nicht locker.
Quand elle mord,
ma murène ne lâche jamais prise !
Quando ti morde,
la mia murena non ti lascia più.