Tatsu Yamashiro was an average Japanese girl, save for her proficiency in the martial arts. Two brothers, Maseo and Takeo Yamashiro, both proclaimed their love for her. While she liked both, she chose Maseo. This angered Takeo, who refused to attend the couple's wedding. By this time, he had joined the Yakuza, receiving a large dragon tattoo across his chest to mark himself as such. As a result, his family disowned him.