The story is told of Jukai-sensei, a doctor who not only healed the sick, but made prostheses for those who had lost limbs in accidents or war. He once worked for Lord Shiba, crucifying wounded enemies until the day his loved one was killed by Shiba's soldiers, and he leaped into the sea. He was rescued by foreigners and learned how to make prosthesis. One day, he found Lord Kagemitsu Daigo's abandoned and deformed infant on a riverbank. He took the child home and made special prostheses for him so he could move about and appear normal...