Kombu Infinity

A mysterious being that appeared in City Z. The seaweed-like substance on his body can be extended and used like a whip. He goes to City Z looking for fights.

He is shown to be very strong, easily defeating two Class A Heroes.

[Spoiler] He eventually runs into Saitama and is defeated when Saitama rips all of the seaweed-like substance from his body and uses it for that night's dinner. [/Spoiler]