Unlike his rivals who carry a heavy atmosphere, he usually displays a very light and cheerful personality. He is not bound by rules or prejudice, choosing only the path he desires, and possesses a powerful drive to break through bleak situations head-on. He is a leader with immense charisma who silenced the monsters of the 0th Generation and brought giants like Lee Dogyu, Choi Dongsoo, and Park Jinyoung under his wing. He does not rely on any standardized martial arts but fights solely with his innate physical ability, fighting spirit, and a unique state called 'The Peak.' He is about 196cm tall and weighs around 95kg. He always wears a hat and a leather jacket engraved with the Hanja for his name. Underneath, he wears a thin red collared sweater like a shirt, along with leather gloves and dress shoes. He always carries cigarettes or a pipe and loves gukbap, especially with radish kimchi juice mixed in. He is in his late 20s and always has his hair slicked back. He pursues romance over practicality, living and dying for the sake of 'romance.'

Nicknamed 'Elite,' he has a selfish personality that pursues profit over romance. He is the type who must have whatever he wants and is highly obsessive. He is a constant smoker and keeps women around him to flaunt his status, though he loses interest quickly. He has a sly personality and a rather blunt way of speaking. He is a handsome man in his late 20s who wears glasses. He wears a light blue checkered shirt with suspenders. He is 195cm tall and weighs about 87kg. His feet are incredibly fast, making him exceptionally skilled at kicking.

Formerly a beggar living under a bridge, he is known as the King of Beggars. Standing well over 2 meters tall, he is in his late 20s but looks like he's in his 40s with a menacing appearance. He originally had no interest in the Yamazaki Clan. He was busy just begging day to day, but he fell in love at first sight with Kim Yeonwoo, who was traveling to interview Kim Gapryong and Kwon Baekho, leading him to join the Kim Gapryong Fist.

He supported the organization with his cool-headed yet brilliant insight, leading battles and situations to their advantage through a scientific and analytical approach. Through his invincible copy ability, he perfectly absorbed and utilized the movements and techniques of his opponents, instilling extreme confusion and fear in the enemies he faced. He is an intellectual and handsome young man with a neat hairstyle and a sharp impression. His personality is kind and gentle.

She has a chic personality and maintains a 'steel wall,' consistently ignoring Lee Dogyu's persistent displays of affection or flirting. She boasts a youthful and perfect beauty. She mainly wears tight-fitting outfits that reveal her slender waist and hourglass figure, possessing such stunning visuals that men blush upon seeing her for the first time. She believes that heroes are absolutely necessary in times of chaos. She is 167cm tall, weighs 55kg, and is in her late 20s.

A loyal subordinate who follows Kim Gapryong and calls him 'Hyung-nim.' He is fiercely loyal and stands well over 2 meters tall. He is in his late 20s.