The sun sets on a hillside by the sea, and a man is at work crucifying “rebels” with all the passion and intensity of a guy filling a vending machine. There’s a detached, workmanlike quality to his ghoulish work.
He’s finally snapped out of it when a woman arrives, perhaps his wife, pleading for him to stop. She is run through by a soldier and dies right in front of the man. Whoever she is, he is now awake to the horrors he is committing, and decides to put an end to it, by leaping from the cliff into the sea.
Because this scene was in vivid color and the following scenes in monochrome, there’s some initial confusion as to which scene took place first—especially since he seemed to off himself. Here man, named Jukai, has a young apprentice in Kaname, who is also a recipient of one of his miraculous prostheses. Villagers and out-of-towners alike line up outside his workshop hoping he can help their loved ones live normal lives again.
We learn beyond a doubt the crucifying was a part of Jukai’s past when Kaname hears a rumor from one of the out-of-town beneficiaries of his services that Jukai once served Lord Shiba. Jukai didn’t die in the jump, but was picked up by a foreign ship and taken to their country, where he learned his prosthetic-making craft. He works not for forgiveness or atonement, but simply because he believes his life was spared so he could learn the craft and use it to help as many people as possible.
An honorable a notion that may be, but Kaname’s father was killed by Lord Shiba’s reign of terror. While he wants to kill Jukai for revenge, he lets him finish an arm for a young boy whose only crime was crossing paths with a samurai…then he sheds the artificial leg Jukai made for him and hobbles off, unable to live or work with Jukai anymore.
A bit later, while walking along a riverbank, Jukai, alone again, stumbles and discovers the boat bearing the newborn babe with no eyes, ears, limbs or skin…yet still clinging to life and clearly wanting to live. Jukai finds another reason to keep living himself, and builds all the parts necessary for Hyakkimaru to not just survive, but thrive.
As Jukai raises and trains Hyakkimaru (a name he gave him), Daigo’s healthy second son Tahoumaru is born, and grows into a highly skilled but also arrogant young man, who also rues the deserated diety his mother keeps around as a memento of her firstborn, of whom Tahoumaru probably knows nothing.
Jukai learns that whatever special gift Hyakkimaru possesses that enabled him to survive this long also draws demons to his vicinity. Hyakkimaru can’t feel pain, so he feels no fear, and dispatches each demon to cross his path with relative ease.
But when Hyakkimaru ends one specific demon and his left leg suddenly and miraulously grows back (ironically the same limb Kaname lost), Jukai concludes that someone made a terrible deal with the demons that resulted in Hyakkimaru losing almost everything. He’s seen firsthand that Hyakkimaru can retrieve those parts that were taken from him by fighting, so Jukai trains him to kill, even as he curses himself for doing so.
For while Hyakkimaru, like Jukai, was given the gift of survival under incalculable odds, Jukai laments that the boy is destined to spend that life mired in violence, blood, despair, and loneliness. But he lets him go anyway. He cannot choose for Hyakkimaru how to live the life he was given, nor can he accompany him on his quest without getting in the way.
Back in the present, Hyakkimaru explores his newfound sense of pain by stepping on the fire with his real foot, then stomping it, prompting Dororo to stop him. Pain is clearly so foreign to him that he’s not sure quite how to react to it; fortunately, he has friends in Dororo and Biwamaru to make sure he doesn’t get in too much trouble experimenting. Dororo, meanwhile, won’t soon forgive whatever scoundrel allowed so much to be taken from his friend.
Meanwhile, Jukai, alone once more, continues to ply the battlefields, fitting the living and the dead alike with his handmade prosthetic limbs, unable to go anywhere or do anything else, but still able to do at least this much.