In ancient times, according to legend, a mysterious tribe had an ability to resist the external demonic powers of the world. When women of the tribe reached adulthood, they would have the ability to absorb the energy of the outside world and resist it. Unfortunately, this tribe was hunted down by the world and they were killed by everyone. After being slaughtered, one person survived and the other escaped into the world to escape disaster. The woman sacrificed herself to protect her baby. The baby disappeared, and the bureau is still investigating the possibility that it was the woman's child.