Baki

Yuujirou Hanma is Baki and Jack Hanma's father. He is the primary antagonist of the entire Baki franchise. Yuujirou is the son of Yuuichirou Hanma and the strongest character in the series thus far. Yuujirou works as a highly-paid freelance mercenary and assassin for various governments and organizations. It is unknown how much people or organizations pay him to do his mercenary job, but it is extremely high, judging from his expensive taste. He is often called "the Strongest Creature on Earth."