Yuujirou Hanma

Yuujirou is a fierce and arrogant man. He is extremely violent, showing no mercy towards anybody, as he views mercy as a "weak" trait. Yuujirou is also emotionally manipulative - this can be seen in his relationships with his son and Emi Akezawa, for example. He seemingly lives only to fight and cause destruction to anything and everything he can. His whole life and mindset are dedicated to nothing but fighting and growing stronger with each person he defeats, sometimes killing them. He tends to kill people if pushed or enraged enough and does not show care or remorse when doing so. He will also kill for pleasure or satisfaction when he feels like it, facing no repercussions as even the USA is powerless to stop him. He has a deep resentment for the weak and does not even think it's worth killing them. He desires his son Baki to become strong like him, so he can enjoy a challenging fight with him as if Baki is a toy to him. He also takes a gloomy, stoic attitude most of the time.

He is incredibly intimidating, having a menacing aura that makes everyone around feel petrified. His mere presence is more than enough to make others be uncomfortable and nervous near to him. While most people are scared of him, fighters and martial artists greatly respect Yuujirou due to his supernatural strength viewing him as the pinnacle of power. He is considered by people as something more than a human and more like a creature or a force of nature that goes beyond human understanding. Yuujirou is feared to the point of USA granting him complete amnesty and even making a "contract" by the president that it has to be renewed every year.

He is also ruthless, as shown when he ripped Kaiou Ryuu's face-off and then slammed his skinless face onto the stone floor. Another example would be when he killed Emi Akezawa by rupturing her eardrums and then breaking her spine. He is a very arrogant man, believing and knowing that he is the most vital living creature on Earth, and he feels inclined to do whatever he wants, with no one being able to stop him. He views everyone else as insects compared to him and sees them as "the weak". He believes that everything should be obtained with pure strength alone and therefore does not believe in using weapons. He considers his body as the ultimate weapon, which so far has indeed proven to be more effective and deadly than any other weapon or technology. Since his fight with Baki went viral, Yuujirou was annoyed that he had gained unwanted fans and has referenced several young children asking for his autograph since the fight. Despite being wrathful, Yuujirou is surprisingly patient and almost always keeps his cool. He is stoic most of the time, often speaking only what is needed and even just what is necessary. In truth, most of the time only silently listens to others and sometimes adds something and can keep his cool even when he is insulted. Although enough is enough, he can be very violent, and he almost instantly switches back to his usual calm demeanor.

Yuujirou does have a somewhat "soft" side. He once had offered Baki some soup as a sign of respect for his power after an eventual tie between him and Baki; he also tried to avoid telling Kaoru Hanayama the fact that he signed an autograph for a kid out of embarrassment. He's also shown to, despite having killed her, possess some affection towards Emi (and even seemingly regrets what he did, but it is hard to say) as shown when he says to Hinary that he would protect whoever had close ties with Emi. He even fought for the weak in wars to be, in his words, a "role model." Because he was obliterating their oppressors, "the weak" started to see him as something sent from God. Even Musashi Miyamoto has stated that "there is a kindness" to Yuujirou.

Yuujirou unabashedly interferes in Baki's affairs by creating destructive challenges for him to overcome and develop from. It should be noted that despite his oppressive and generally hands-off parenting style with Baki, he wants him to become stronger. His motives for this are a mixture of Yuujirou's parental projection of Baki following in his image as a legendary fighter and the potential of creating a stronger opponent for himself for his own entertainment. He encourages Baki to have sex with Kozue Matsumoto, which eventually triggers his transition into manhood which then triggers a drastic change in Baki's fighting maturity, which is seen during his fight with Ryuukou Yanagi.

It is common knowledge that Yuujirou is the father of Baki and Jack Hanma, but he states in a conversation with Mohammad Alai who invited him into his home to meet his son that Yuujirou has fathered many children throughout the world who remain unknown to the plot. No one knows for sure how many half-siblings Baki has in addition to Jack as there exists no record of the extent of Yuujirou's bloodline. Knowing this, and knowing Yuujirou's other personality traits such as arrogance, cruelty, and selfishness, as well as very little care for his children aside from Baki and Jack, it can be said that Yuujirou has the mind of a sociopathic narcissist (also known as malignant narcissism in clinical settings).

Beyond his philosophy and time spent training or fighting, Yuujirou is fully capable of living in modern society. While not stated, it's shown that Yuujirou has access to considerable resources, most likely in the form of connections or favors from some of the most influential people in the world. Given his power and threat level, this is not surprising. Other resources also most likely include a vast personal fortune. This is very clear from how Yuujirou has demonstrated sophistication and his ability to carry himself in high society. Yuujirou has sharp tastes, and whenever attending places of refining or meant for the elite of society, he can blend right in by both dress and manner. Since Yuujirou is the strongest in the world and sees himself as a king, this may be his way of trying to act in a way becoming of a king. He's also shown to be erudite, intelligent, and well-read in various topics, some of which are pretty esoteric.

During his 16th year, Yuujirou was quite different from his current self. He was much calmer, less savage and, not so bloodthirsty, most of the time defeating just his adversaries and destroying their vehicles. However, over the next two years on battlefields, Yuujirou's desire to fight and bloodlust grows exponentially and mercilessly kills everyone who stands in his way, making him the man he is today. It may be that compared to his youth, the current Yuujirou has had the chance to calm his personality and temper his instincts. Perhaps as an extension of his manners and desire to project an image of sophistication, Yuujirou can be an excellent company to anyone who has earned his respect or consideration. In these instances, he has no problem getting along with the people he has acknowledged. He accepted Baki's request for a quiet dinner together, where despite Baki's resentment towards him, he admitted that he enjoyed the meal with Yuujirou immensely. He's also gone out for drinks with Doppo Orochi, possibly because Doppo gave him an exciting fight in the past and managed to survive. He also rejects the Kaiou title given to him by Kaiou Kaku by claiming that his feelings are enough. He later complemented Izou Motobe to Musashi by claiming Motobe fights for real and is ready to do anything to win while commenting on how Motobe was rewarded for his hard work by finally being able to face Musashi where Motobe could use all of his skills and moves.

In fact, as a result of Yuujirou's inhumanly high testosterone level, higher than that of any creature on Earth, along with an extension of his arrogance, has made scientists like Kureha believe that Yuujirou thinks of himself as the only truly "male" specimen on the world, and view everyone else as "women" or "wimps" who are under the thumb of his dominance, no matter whether they are young, old, or biologically male or female, they are all equally beneath him in his view. As evidence of this, Yuujirou raped Joe William, a visibly very masculine man, both physically and internally, in such a depraved manner it left the man traumatized and in his own words "realize the woman within him" to the extent that he has risked his life in dangerous adventures as a coping mechanism to reaffirm his masculinity. Much later, and after facing Nomu no Sukune the 2nd, he threatened to rape Tokugawa if he continued to speak after being irritated by his earlier words, which caused Tokugawa to feel both shocked and flattered. As such, defining Yuujirou's sexuality is rather complex, as while he has no problem having sexual intercourse with anybody else, it is driven largely because he is biologically more masculine than any other organism.