The fourth primogenitor - is the strongest vampire who exists only in the world of legends; yet when this masters the 12 kenju, the spread of the catastrophe of the vampires will appear in Japan.... more>>

In order to spy on and erase this, "fourth primogenitor," the government-owned Lion organization has decided to send an attacking magician, "sword shaman" to complete the task. Yet unknowingly, the one who was selected to spy was actually a trainee "sword shaman" girl - Himeragi Yukina. <<less