Kitsuki Yuki was a Kitsuki Investigator of the Dragon Clan. Her father Kitsuki Tatsuya had investigated a serial killer, and eventually fell in love of Akihime, a geisha who allowed him to believe she loved him. Akihime lured Tatsuya into her confidence and sacrificed him to her new Lord, Fu Leng. Her brother Kitsuki Daigo was also killed by the tainted girl while investigating his father's murder. Akihime managed to escape alive after Yuki tracked her down and set ablaze her geisha house.