Origin
Japan
Nui No Kata, formerly known as to her "pet name" from her former husband as Oku, was Daigo Kagemitsu's former wife and also the mother of Hyakkimaru and Tahomaru. Due to her betrayal towards Kagemitsu and her land as well divorced her marriage connection, She was the tritagonist of the series. She was once the lady of Ishikawa and the former matriarch of the Daigo Clan before renounced her status and cut her ties with her family on her and Dororo's quest of searching Hyakkimaru. She died along with Jukai and Tahomaru with the domain went burned down.

Dororo
During the Sengoku period, when the whole nation was turned into the battle fields, Kagemitsu, the Lord of Daigo, makes a pact with 12 demon statues in exchange for the prosperity and rulership of the territory as he promises each of the demons a piece of his unborn child. Upon birth, this malformed limbless child is thrown away and cast into a river. Time passes and peace comes to the country. One day, a young thief named Dororo encounters a ronin named Hyakkimaru. Is he man or is he demon… With limbs forged by man and arms of swords, this blind ronin carries out a violent crusade against demons. (Source: Fuji Creative, edited)