There are many areas each of which is necessary for the survival of the universe. Most know only two domains, the domain of light and the domain of darkness, but the domain they do not know is that of sex. This kingdom has its own inhabitants known as "Lustful". From time to time, a Lustful will be born with the ability to move from one kingdom to another and influence the spirits. This lustful will have a desire: to find women and increase their power by kissing them.