Zakos

Zakos (ザッコス, Zakkosu) is a martial artist and user of the Head First Rushing Style.

Appearance
Zakos is a young man with long, light colored hair that is slicked back and has a prominent widow peak. His eyebrows are prominent, pointing outward and he wears aviator sunglasses. He wears a traditional, black embroidered white uniform used in Chinese martial arts.

Personality
Zakos is very serious about martial arts and is very rude to those he deems to not take it seriously.

Monster Raid Arc
Zakos is participating in the Martial Arts Tournament in C-City at the the C-City Super Stadium. This is the seventh time in a row Zakos has participated in the tournament. Zakos wishes to win so that he can propose.

Saitama converses with Sour Face when Zakos appears and starts questioning Saitama. Sour Face ends up answering some of Zakos questions. Zakos then reveals that Bang was supposed to be one of the judges, much to Sour Face's surprise, and starts mocking the martial arts master. Sour Face starts to feel very insulted, but felt even angrier when "Charanko" did not seem angry at Zakos's comments. Saitama replies that he was not invested in the conversation and is only looking forward to fighting Zakos, but notes that Zakos doesn't seem strong. Zakos retorts by saying he looks forward to the match as well and will beat Saitama to a pulp.

In the tournament, he is quickly eliminated in one slap by Saitama disguised as Charanko.

As he continues to watch Saitama's matches, from the sidelines, a recovering Zakos is unable to fathom Saitama's fighting style.

Abilities and Powers
Not much is known about Zakos's strength, but he was confident enough in his abilities to enter the Super Fight Tournament seven times though it is implied he never won one.

Fighting Style
Head First Rushing Style (猪突猛真拳, Chototsu mō shin ken): He doesn't have the chance to show this style since he gets defeated by Saitama with one slap after rushing a fist toward him.

Quotes
"Even the man they call the greatest treasure of martial arts is getting old, it seems... He's abandoned the dojo and the tournament for some so-called hero activities like he's living in his own dream world."