An old woman with the appearance of a young girl, Choshou is in charge of the Hyakukeitō, a set of 5 legendary Chinese jian made of jewels supposedly made by Cao Cao in ancient China. All five were embedded in a large boulder on Chosho's property and sealed with chi, making them impossible to remove. Totaku was the first person to train under her to obtain the Hyakuhekitou, then Kanu, Ryomou, and Hakufu, with Hakufu the last one to seek training from her. Totaku went berserk in a blind sight of rage after Chosho lectured him about being weak. Hakufu tried to save her but fell unconscious after a jumping from a cliff turning to get to the city faster. Chosho gave Hakufu a gift through a kiss. It is possible that she is dead after giving Hakufu her gift, and it is not yet said what her gift was. Chosho appeared in episode 8 of Great Guardians, where she is seen training Ryomou.

Hakufu's dreams of participating in new fights and tournaments are put on hold as new obstacles block her path. Her friends have lost faith in her, new enemies appear, and a younger sister she never knew existed suddenly shows up on her doorstep. If Hakufu ever hopes to compete worldwide, she's going to have to deal with her issues at home first. <br><br>
(Source: FUNimation) 

Sealed in ancient jewels are the spirits of the heroes who tried and failed to unite China in the Three Kingdoms era. These jewels have been scattered throughout Japan, and have the power to draw out the full potential of those who inherit them. However, those owners, known as Toushi, are possessed with an insatiable appetite for battle. Hakufu Sonsaku is one such Toushi. Living in the country, Hakufu's desire to beat something to a pulp goes unfulfilled until her mother tells her to go to Tokyo, where she starts training with other Toushi and sets foot on the path to her destiny. <br><br>
(Source: Tokyopop)

Shifu Choshou