Introduction: The world of Foia, once known as Earth. now utterly changed by the arrival of Mana, has completely changed after hundreds of years.David, who once faced the beginning of the calamity that ended human civilization as he knew it. had awoken into a world of horrors, gods, demons, and corruption.let us see how he will continue to live through this new world that now awaits him, shall we?(note, English is not my first language and I may make some mistakes. constructive criticism are of course appreciated, but please be kind I'm sensitive ;-;)...