The Dragon Society
The group was responsible after the Shogun's death, for having Keiko Shimasa Takamura, the Shogun's daughter get her tattoo Likely they believed it would prove the legend true that the Shogun's oldest child would inherit his power. Unbeknownst to them though was that the Shogun had another child born at the exact same time in America. Keiko only received half of her fathers power and when she met up with her brother, they could access the full power of the Shogun. They eventually became the Jade Dragons in the mid 1970s.