About: Left to fend for himself from an early age on the streets of Ode, Karuzo cultivated his mind through many trials. His charming wit and playful nature, paired with his persuasive prowess, led him into the exciting life of a booty hunter. Karuzo's thrilling lifestyle taught him to enjoy the diverse pleasures of life, such as the companionship of men and the thrill of gambling.
Instead of an hitman, Karuzo is booty hunter, which hunt men for their ass. He has brown hair rather than blonde, and his outfit is pretty much the same, just with different colors. As a hitman, Kazuki's main task is to gather intelligence but it's unknown if Karuzo does the same but what's similar is them being into flirting and gambling. Unlike Kazuki and Rei that are a hitman duo, in GH, they are in a relationship but they appear to be not being a father figure to a kid that's a child of their former target.