Gods and demons have the same origin, but for thousands of years there have been constant wars and smoke... Is this the only way the story can develop? ! The original twin gods tell the origin of gods and demons and interpret their own world of gods and demons. This article is the first volume of the Six Worlds series: Gods and Demons. Other volumes will be posted in the future. Please note in advance that the themes of each volume are consistent or related, and the protagonists and stories are independent.