[Whether this book has no heroine, a harem or a single heroine is decided by the readers, so be sure to participate in the vote and give the author some encouragement. I really can't write anymore]
It starts like a bad story, with the boy who slays the dragon becoming the evil dragon.
But the changes in the world are caused by the arrival of people from outside the world.
Charlie, the boy who slayed the dragon, was both a dragon and a pawn of the world. What kind of legends will be left in this strange world? From facing the evil god in the Northern Kingdom to facing the destruction of the magic city... Who knows what kind of adventures he will experience in the future?
Is it witnessing the destruction of a great kingdom by greedy people, a debate battle under a strange association, or the creation of a godless religion in an age where gods were supposed to be...
"This book will deal with demons and devils, the evil gods of the past, the development of city-states, and the development time will be from the early city-states to the end of modern times."