The Yakuza are a famously patriarchal organized crime syndicate. Rarely have there been exceptions to this historically. Ryū Koi, the Jade Dragon of the Koi Family, is one of these exceptions. She was sold off to be a kind of Comfort Woman with her mother after her father's failure to pay his debts, and she was groomed and taught how to be of service. Wanting a better life for her and her mother, Ryū met a kyodai in the Yakuza, before joining the Yamamato Clan and later founding the Koi Family.