Fu

Fu is Mashin's current host and a former member of the Iron Country.

Personality
Fu was once a vibrant, happy soul. She would often tell many fascinating stories to her comrades for she loved to see their reactions. When her master died, she lost all of her personality. From that point on she lacked emotion of any sort, at least externally.

Part I
Fu was once a proud samurai of the Iron Country, and she defended her lord loyally. One day, while guarding her lord through a mountain pass, a great monster appeared and threw her against the rocky cliffs and knocked her out. When she awoke, she saw the bloody remains of her master. Having failed him, she entered a desolate cave and was about to commit seppuku when an apparition appeared before her and persuaded her to spare her life. She put down her blade and asked why she should. The spirit replied that she could serve him, and that she would not fail, for even if she did, she would die immediately anyway. When she asked how that was possible, the spirit revealed itself as the soul of the dragon king Mashin. He told her that he would use her body as a container for his soul so he could affect the world. Seeing her life as pointless anyway, she let him inside of her, causing a tattoo to become etched on her skin resembling the beast's form.

Part II
By the beginning of Part II, Fu had helped her new master in obtaining a sizable army of vagrant ninjas and mercenaries. They fought loyally for Mashin, so long as they were paid. Fu lead several different factions of the army into battle against countries without a hidden village, looting them of their gold. This provided enough funds for the army to stay content. Eventually, Mashin decided he needed truly strong ninjas to fight for him, and so guided Fu to a mystical sword he once forged hundreds of years before. The sword would be able to revive any who touched the blade. When she found the sword, it was shattered, but it still held the rejuvenating effect. With the sword, she revived Kin Tsuchi, Zaku Abumi, Dosu Kinuta, Zabuza Momochi, Jirobo, Kidomaru, and Yugito Nii. Of these, only Kin, Zabuza, Kidomaru, and Yugito agreed to serve Mashin. Fu took a particular interest in Kin and trained her in samurai swordsmanship.

Master Swordswoman
Fu was and still is one of the most powerful women the Iron Country has ever produced. She has mastered the fusion of chakra with her blade at such a level it is trivial for her to do.

Mashin's Blessings
See: Mashin