Bizuki is a shrine priestess who excels in exorcisms and purifications. She was named after her beautiful dances and flute playing. Her powers awakened when she was 16 and she became a respected healer. A century before Samurai Shodown II begins, Bizuki attempted to seal Mizuki when she was twenty-five. However, she was overwhelmed and soon possessed by the evil spirit. She continued to serve as its unwilling host until Mizuki was sealed for good in the demon world. While ashamed of her powerlessness to stop the demon, she chooses to continue to live in the mortal realm as Kyoshiro's assistant. Since then, she took the name Okuni as her alias.