​In the final days of the Shogunate period in Japan, female Shinobi assassins struggle to survive in the underground world of contract killing. Karyuu, a skilled and alluring assassin, utilizes her impressive combat abilities and seductive appeal to accomplish her dangerous missions. However, when she infiltrates a house to eliminate her target, Karyuu discovers him engaged in a flirtatious encounter with a maidservant who is also a contract assassin named Uzume. Stunned by Uzume’s unexpected intervention, Karyuu witnesses her rival swiftly carry out her own mission by executing the man. Now, a fierce battle unfolds between Karyuu and Uzume, setting the stage for a thrilling showdown.​