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Hero Overview

Koichi Haimawari, also known as the Crawler and Nice Guy, is a major character in the My Hero Academia, specifically being the titular main protagonist of the spin-off prequel manga series My Hero Academia: Vigilantes and its 2025 TV anime adaptation.

As a child, Haimawari was inspired by Japan's greatest hero All Might to one day become a professional hero who would save those in danger. However, Koichi never earned the qualifications necessary to become a pro, instead walking down the path of an illegal vigilante known as "Nice Guy" who assisted society from outside the law.

He eventually teamed up with two other illegal vigilantes named Pop☆Step and Knuckleduster, forming the trio that became known as the Naruhata Vigilantes. Hoping to present himself more seriously, Koichi changed his name from Nice Guy to the "Crawler" with the idea that criminals would find it more intimidating. His quirk, called Slide and Glide, allowed Haimawari to slide over smooth surfaces.

Following the events of the Naruhata Lockdown, Koichi officially becomes the sidekick of Captain Celebrity and assumes his new hero name; the Skycrawler.

He is voiced by Shūichirō Umeda in the Japanese version and by Jack Broadbent in the English adaption.

Appearance

Koichi is a slim young man with light skin and short straight dark brown hair and large round brown eyes.

In his early days as a vigilante, before he met Knuckleduster, his vigilante costume consisted of his normal clothes in conjunction with one of his many All Might-themed hooded jackets. He also wore a black medical mask to cover his face and protected his hands with regular black gloves. Subsequently, on the advice of Knuckleduster, he renewed his appearance. He continues wearing an All Might hoodie, as he thinks that wearing it makes him more effective as a vigilante, but now over motorcycle protective gear along with gloves and boots. He rarely uses a black mask to cover his mouth and a pair of red tinted shades to hide his eyes.

Since the distinctive elements of his vigilante costume are the various official All Might hoodies he has, Koichi's appearance sometimes varies between missions, as each hoodie has different colors and occasionally with special edition logos on the back. His most recent one was a black hoodie, before it was eventually destroyed.

After his battle against Number 6, he now possesses a scar on his left cheek, which he received from the villain shortly before his death. As "The Skycrawler", his hero costume is a blue full body suit, akin to his traditional All Might hoodies and Number 6's "O'Clock II" costume, an updated version of his original gloves, and silver armored shoulder pads, also bearing a resemblance to Number 6's costume. He also wears a purple visor that resembles Captain Celebrity's, and has a utility belt over his waist with an "SC" on it.

Personality

Koichi is a nice and kind-hearted person who is willing to help others and expect nothing in return. While wearing his disguise, he was willing to use his Quirk in order to preform good deeds for other people, such as giving others directions, picking up litter and returning lost items.

While easy-going and mild-mannered, Koichi has sometimes been misinterpreted as a "Creepy Guy" by his college peers due to his eagerness to make friends, as well as his penthouse being located on top of an abandoned building. Koichi can at times be awkward, unintentionally insulting others while trying to actually compliment them and seems to have trouble reading social cues.

Despite this, Koichi does have a true heroic nature inside of him and is unable to not help someone in need, which is shown when he jumped in to save Pop☆Step from being assaulted, even after having an argument with her. He also has no problem with doing simple good deeds to help out however he can, no matter how menial they might seem. This shows that Koichi wants to be a hero neither for money nor fame, but simply to help out others.

Koichi is also willing to pass on hope to others, even indirectly, as he allowed a young drowning victim to keep one of his All Might hoodies, believing that said child might become a hero themselves and call back to that moment. At the same time, he was also very happy and excited upon being recognised by the Pro Hero Ingenium and being given his card, although he was later very depressed when Ingenium had to ask for the card back upon learning of Koichi's vigilantism.

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