Mano Yohko is your typical, ditzy teenager except that her mother sleeps around, and that her grandmother insists that she perform all these strange ceremonies. You see - Mano Yohko is actually the latest in a line of Devil Hunters, the 108th, to be precise. But there\'s a hitch - to become a Devil Hunter, you must remain a virgin until you have completed all the sacred rituals proclaiming you to be one. Keeping her virginity is precisely the last thing Yohko wants to do, and she\'s found the perfect guy. Unfortunately, so have the devils she\'s meant to hunt, and she soon has much more to save than her chastity, as those around her turn out to be demons from the underworld.