6 : The Terrifying City Here

: Saitama defeats Kombu Infinity off-screen and is later seen boiling the monster’s seaweed-like appendages to eat for dinner. Character Highlights

: A powerful monster known as Kombu Infinity arrives in City Z, drawn by rumors that strong monsters gather there. After easily defeating two Class A heroes (Golden Ball and Spring Mustachio), the monster encounters Saitama. 6 : The Terrifying City

: The Hero Association investigates the area to find the source of the high monster density, unaware that the reason most "disasters" end quickly is simply because Saitama defeats them before they can leave the area. Key Events in Episode 6 : Saitama defeats Kombu Infinity off-screen and is

: Having recently registered as a professional hero, Saitama realizes he has done nothing "heroic" in five days. If he does not perform a heroic act within a week, he risks being dropped from the Hero Registry. : The Hero Association investigates the area to

In the series, City Z has a notorious reputation for being a "haunted" or "terrifying" place due to its unusually high frequency of monster sightings and strange occurrences.