With one punch, huh? Heh heh... Commoners like you and Suiryu are good at that. But doing that's easy. I'm on a whole other level. I take my time when serving an execution. My family has spent generations breeding superior genes! And I'm it's finest creation! I'm a different species than you comoners! And now my clan will reveal our supreme power! And we shall rule the world! The ref intervened to stop me from killing my previous two matches... ...So I'll be more careful this time. You're gonna die. I can't wait to see you weep and scream.
"Not that bad"? You lack intelligence. I've changed my mind. Instead of focusing on my family's plot to dominate the world... ...I'll kill everyone I consider to be useless... ...And refashion the world with those who pass my test! My new world doesn't need you. Therefore you fail my test and must die.
Choze was a martial artist and user of the Fist Of The Pure Blood Master Race.
After eating a monster cell offered to him by Gouketsu, Choze became a monster and joined the Monster Association. He was killed by Suiryu.
This dropdown contains the synopsis of Choze’s story. Read at your own risk as you may be spoiled otherwise!
Monster Raid Arc
Choze made an announcement during his campaign that he views poorly of the other contestants and caused a sensation. Choze is participating in the Super Fight Tournament in C-City at the C-City Super Stadium for the first time. While watching the match between Max and Suiryu, he was shocked by the latter's strength, where Max was effortlessly defeated by his opponent.
He easily defeats Mentai in his first match, surprising the audience and the crowd with his overwhelming power. Choze is mentioned to have said that he feels that he is the true front runner in the tournament. In the second match, he viciously defeats Dave to the verge of death.
Super Fight Arc
During his fight against Saitama, Choze gabs endlessly about his genetically superior view during the fight and eventually foolishly lets his guard down, which causes a bored Saitama to send him flying to silence him. According to Saitama, ultimately, no matter how pure or superior his genetics were, at the end of the day, he was still just a mere human. Choze is later present at the closing ceremony, when it is suddenly interrupted by The Three Crows and Gouketsu, who threatens to kill them unless they choose to become monsters.
Later, he kills Rosie, who had just recently become a monster himself having consumed one of the Monster Cells. Afterwards, Choze, thinking that "for someone who has the finest genes in all of humanity who aims for the ultimate power," eats a monster cell himself. Following his transformation, he attacks Jakumen just for the sake of testing his newfound strength. During this time, he vows to kill Saitama for humiliating him by punching and sending him flying while yawning.
After Suiryu takes down several transformed martial artists, Choze battles Suiryu evenly to the point of causing Suiryu to struggle to fight him. After a few exchanges of blows, Choze eventually uses his Inferior Race Annihilation Shot in an attempt to kill Suiryu, only for the latter to manage to deflect it into the sky with his kick. Seeing the danger of Choze's power, Suiryu rushes towards him and breaks his horns before engaging in a fast exchange of hits until Suiryu initiates the Void Shaking Tiger Fist technique on Choze's belly, which causes him to heavily cough blood. Immediately after, Choze is finished off by Suiryu, who unleashes his Void Phoenix Ascension Fist on him, finally defeating Choze.
The Fist Of The Pure Blood Master Race: Initially, Choze didn't have the chance to show his style since he was sent flying by Saitama for incessantly talking too much during the fight. His fighting style involved fast movements. After becoming a monster, Choze incorporated his new energy-projecting ability into his fighting style.
Inferior Race Annihilation Shot: Choze could release a powerful energy orb from between his horns. It was strong enough to cause Suiryu to struggle while holding it back and creating a large opening in the clouds. Its first and only use was at the end of their fight.
Other
Standard Tactics: Choze will use his fighting style involving fast movements, along with using his energy bullets to attack. He will make sure to torture someone slowly as he enjoys it.
Choze's battle with Suiryu in Chapter 72 was slightly extended in the volume release, featuring the two blocking and dodging each other's kicks. This change was reflected in the anime adaptation.