Mio was born in the village of Iga and grew up as a ninja.She usually lived a peaceful life as a village girl, but her days of hardship begin when she receives a secret letter from Yashichi, who is dying.Chasing after her is Hanzo, who was a former companion, and his crew.Unable to escape, Mio challenges her to a head-to-head game, but she is forced to fight against several people and is captured.What awaited Mio, who woke up while her consciousness was hazy, was training by men who were smeared with her lust.