Muzan is dead. now the world has changed, but a son of muzan created by a scientist to destroy the world the trio has to stop him from destroying the world

Jin Gon a guy in his teens who is chosen to be the seraphim of Dragons and attends a school of Heroes. he them made friends and enemies like Saitama. he has to stop Saitama who is the wind elementalist and seraphim of the evil and chaos