This is a weapon made of [soul], [tragedy], and [machine]. The soul is its dynamic mechanism, and the call of the loved ones will bring the heavenly dead back to reality. There is tragedy buried in people's hearts, do you have relatives who want to be resurrected? Then call him by name! But this grief will be exploited by the Millennial Earl to craft a murderous weapon called the Demon. This is a war between Noah, who claim to be chosen by the gods, and the chosen ones who respond to God's will. So in this war that lasted for thousands of years, countless souls could not be rested, and heavy sins were repeated in reincarnation.