"Over-Adaptation ability user?" Himeragi Yukina repeated.
"I assume you've heard the name 'Fourth True Ancestor.'"
Himeragi Yukina nodded. She had heard that name before. "The vampire known as the strongest? But isn't that supposed to be an urban legend? No one has ever seen him."
"Do you know why humans are able to coexist peacefully with vampires and other demons?"
"Because of the Sanctuary Treaty."
"That's right. The Sanctuary Treaty was signed jointly by humans and the Demon Lord of Forgetfulness, who ruled Europe; the Alliance Leader known as the Eye of Destruction, who ruled West Asia; and the Princess of Chaos, who ruled North and South America. That treaty created the current balance. The Fourth True Ancestor truly exists and awakened not long ago. He may very well shatter the existing balance."
Himeragi Yukina was somewhat shocked upon hearing that, then asked, "Could this man be the Fourth True Ancestor?"
"No!" A crisp reply came from behind the curtain, abruptly choking back Himeragi Yukina's confident guess. The Three Saints' deliberate pause was more than she could take.
"Then who is he?"
"The awakened Fourth True Ancestor was defeated by this man, who forcibly seized the Fourth True Ancestor's ten vessels. We don't know what his purpose is. He is now the strongest and most evil existence, replacing the Fourth True Ancestor as the new point of imbalance. Your mission is to monitor this man, uncover his purpose, or guide him into becoming a kind and good person. If he makes any suspicious moves, eliminate him."
"Huh? Me?" Himeragi Yukina could hardly imagine why they wanted her to do it.
"Because you are an outstanding Sword Shaman. This man attends the private Saikai Academy in the Far Eastern Demon Special Zone. This is the Type-7 Assault Demon-Subduing Machine