This is hentai.
It began centuries ago, when the Miroku ninja clan made a deal with the forces of the underworld – leading to centuries of struggle between rival clans. And now, after more than 600 years of peace, the denizens of the underworld are about to get a new boss.
Now, 18-year-old ninja in training Miko Mido is entrusted with the family business: making sure that sex-starved demons stay out of humanity’s way! What’s a ninja to do? Fight, with every battle skill and sexual sorcery she can muster!