After the death of his mother, 20-year-old Lily lives with her grandmother and is going to be the successor to the deadly martial art Sayama Hasin-ryu, which is transmitted for several centuries, from woman to woman. During the initiation ritual, Lily mysteriously falls in the past, 300 years ago.It is in an unknown forest near a small village, besides completely without clothes and some ideas on where to found itself. But her thoughts rudely interrupted by ninjas, who had taken out of nowhere and pursuing a pregnant peasant woman. She has no choice as to defend the poor girl.It turns out that the ninja working for Ms Okin insidious, which is engaged in the district of extortion, robbery and murder ...