Jintetsu is the central character of the manga. He actually dies within the first few pages before being revived as a cyborg by Genkichi. He does not gain any of the usual abilities attributed to partially mechanical men, but parts of his body do become their own weapons. For whatever reason, his benefactor saw it fit to have some of his limbs capable of ejecting blades and the like, allowing him to fight his battles in unorthodox ways (all the fingers in his left hand are actually blades). He is also incapable of digesting food, not without properly meshing before consuming it. He is initially portrayed as a cold blooded killer, where the look of pure hate in his eyes was enough for any man to freeze in their tracks upon facing him. However, as the manga goes on, it is revealed that he is actually rather altruistic, and follows a certain code of honor in deal with his mercenary jobs (not to be confused with bushido). Despite his job as an assassin-for-hire, he is more often seen rescuing or protecting people rather than committing to his assignments. He also reveals in various dialogue that he has no set destination, and is accepting that he will die in battle one day or on the side of a road. A bleak existence he doesn't mind living out. In the past, Jintetsu used to belong a rather powerful clan known as the Senjiro family. However, after his father was murdered, Jintetsu vowed vengeance and slew who he thought was his killer. At the same time, he was forced to go through one of his best friends, who was a pupil to the murderer. His death becomes one of the more frequent things that haunt the drifter, as well as frequent encounters with those from his past. He was a childhood friend to a girl named Otsuki, who promised to await his return after he left, and continued to wait despite news of his death. He later returns to his hometown to bringjustice to both the Eizo family who he thought killed his father, and the Senjiro family for actually orchestrating the events. He also rescues Otsuki in the struggle. Seeing her childhood friend at last, she implores him to stay and tells him that she doesn't care what he has done or what happened to him. However, Jintetsu leaves her regardless, telling her that her friend was gone, and that he is nothing more than a ghost. He also meets Ryujiro, as man he once looked up to as a child, and Renji the Firewalker, a fellow assassin he frequently worked with. The two are actually seeking to kill each other, separating Jin's loyalties and making his emotions conflicted. He later decides to intervene regardless, and despite his best efforts, both die during combat. Renji leaves behind an adopted daughter, Makoto, who decides that with her "father's" death, she only has one purpose in life now: to kill Jintetsu and avenge her family. Likewise, he doesn't mind that she wants to kill him, seeing that it makes it easier to look after her if she's close. It is interesting to note that Jintetsu has a knack for dramatic appearances. He often enters combat at the most opportune times, and is usually accompanied by a flock of crows. He also does an incredible amount of deeds for the benefit of others, putting himself in precarious situations. More than once, he has framed himself for the murders of other, so as to bring the relatives, friends, or the killers themselves some peace. He also never speaks with his own voice, instead relying upon his sword to be his voice.