Joon-gi Han - Yakuza: Like a Dragon wiki

Joon-gi Han is the second in command of the Geomijul. He ends up becoming the fifth playable character of the main story in Yakuza: Like a Dragon.

He is very calm, cool, and collected. Joon-gi Han is an excellent fighter and very skilled with pistol weaponry. Mid way through the story, he is instructed to help Ichiban by order of the leader of the Geomijul. He becomes are voice of reason and sanity in otherwise chaotic grou pof protagonists.

According to his character profile:

"Strategist and second-in-command of the Korean mafia known as the Geomijul. Though he calls himself Joon-gi Han, he is actually the body double of the man who once led the Jingweon Mafia. After that man's death, the new Joon-gi Han took refuge among the Geomijul."

Joon-gi Han's default job is Hitman, which involves brass knuckles and using guns. He can also take on any of the jobs of the other male playable characters, including bodyguard, host, breaker, enforcer, foreman, musician, chef, and fortuneteller.