As long as men have been around, their sexual needs had to be satisfied. One of the ways was through the use of sex dolls and they served a very important purpose. Hyoma, in his younger days, used his powers to place the souls of people who have died into sex dolls, which animated them and made them more realistic. But realizing the horror and pain it brought, Hyoma now seeks all of his creations that have been scattered throughout Edo so that he can release the souls and give them peace. He forms a partner with his sister Chizu who is also one of Hyoma’s creations that has some special features to her body.