Knuckleduster

Iwao Oguro is a vigilante in the Naruhata neighborhood of Japan under the alias "Knuckleduster". He was previously a professional hero known as the Speed Hero "O'Clock".

In the past, Iwao Oguro was a professional hero known as O'Clock, while in China he was known as Ciupan Seikyun (Hyper Quadfist). His career as a hero came to an end after his Quirk was stolen, his face was smashed, and he was left for dead.

After an unknown amount of time following the incident, his relationship with his daughter, Tamao Oguro, becomes strained after she expresses her desire to become a musician to her friends, only for him to yell at her in protest and tell her to stop hanging out with that group of people. This caused her to leave home.

Following Tamao's sudden departure, Iwao Oguro's wife is hospitalized and currently unable to speak properly. In an effort to locate his missing daughter, the former hero becomes a Vigilante named Knuckleduster. During his early investigations, he discovers that his daughter's body has been controlled by a parasitic bee known as Kuin Hachisuka, who works for the Villain Factory, a criminal organization that traffics the drug Trigger and is apparently responsible for his wife's vegetative state.

Since then, Knuckleduster has been searching for a way to rescue his daughter Tamao and put an end to the Villain Factory's operations. To accomplish his goal, he uses various aliases to hide his identity, as well as having contacts with both the criminal world and law enforcement to obtain information and supplies.

Knuckleduster is a person with a strong sense of justice and always does what he thinks is right. He doesn't have a government-issued hero license, but this doesn't stop him from putting on the costume and going out every night to fight street criminals and local gangs to keep his neighborhood safe from crimes, something that most "heroes" wouldn't bother to do. Even though he complains about it, he actually admires heroes for the work that they do. This is probably because he also used to be a pro hero before his powers were stolen from him, leaving him as someone without powers. Knuckleduster shows no fear towards villains, even those with powerful Quirks. In fact, he seems to love fighting particularly strong people who have powerful Quirks, enjoying the challenge and becoming very angry or frustrated when there are no particularly strong villains to fight. When a fight is too easy, he quickly becomes depressed. This seems to be one of the main joys in his life, as he becomes overjoyed whenever he faces a strong opponent. He is even willing to fight professional heroes if the situation calls for it. Knuckleduster appears to be a person with a tendency to use violence to solve any problem. He prefers to strike first and ask questions later, as he is willing to beat up people he deems suspicious on the slightest chance that they might be villains or users of the drug Trigger, forcing his teammates to restrain him before things get worse. His attitude extends to him being willing to attack a young-looking woman under suspicion of being a villain.

Knuckleduster feels little to no guilt or care for what he does, though he could have been recorded as a villain if the misunderstanding continued, showing a more distant and careless side to his personality.

However, despite this, he has proven to be more intelligent and perceptive than he first appeared to be. His conclusions are often spot on, proving to have a great ability of deduction. During fights he is able to come up with strategies and stratagems very quickly to deal with villains with problematic gifts, knowing when is the best time to attack or what element is most suitable to defeat them. And when he is not wearing his vigilante outfit, he is able to behave like a polite person, using the perfect facade of being a worker for a local non-profit organization, even having business cards.

Knuckleduster is a massive, muscular man. He has short, dark hair and noticeably thick eyebrows, and also possesses a stubble beard and a prominent scar running diagonally across his left cheek.

His vigilante outfit consists of a simple black wraparound mask strapped over the top of his head, a tight-fitting dark shirt, jeans, boots, and a long hunter-green trench coat. On his hands, he wears a pair of dark gloves topped with a pair of brass knuckles, or brass knuckles, from which his name is derived.

He has great skill in hand-to-hand combat, being able to take down opponents twice his size. He has keen instincts which allow him to detect danger. Superhuman reflexes with which he can react in an instant. Immense strength, with which he can even move a truck without getting tired. Great resistance with which he can withstand strong blows for a long time and get up again to continue fighting, run for miles, and even carry heavy objects for a long time. Great speed and agility, being much faster, more agile and athletic than any normal human.

Height: 189 Centimeters. Weight: 89 Kilograms.