Toki is a former Hokuto practitioner, and his incredible strength coped with his knowledge of the assassin art would be enough to call him devil.... But Toki's kindness and desire to help people prevent them from calling him devil, they instead can only whisper words akin to that of 'savior'.

Kocho, the Tayu of the Yoshiwara red-light district a beautiful and lustrous "prostitute" but behind the scenes is a ninja the time is 1635 in order to condemn the "stray ninjas" who nest in the world of peace. The prostitute, Kocho, becomes a ninja, Ocho, and throws herself into battle. A beautiful "hunter" wields her blade to accomplish an extraordinary "work"!!

This is the story of Ocho, a shinobi and courtesan who lives under the name "Kocho" and hunts other shinobi who have lost their way. Sequel to Butterfly Beast.