Carnage was a product of Pokken Manticore
Carnage was a product of Pokken Manticore by Maximillion Pegasus The Spider-man and Gwen Stacy were friends. Mary-Jane however was single. Carnage (named abbreviated C.K.) and Mary-Jane proceeded to be friends, then had a son who was a vampire-Spiderman, who is the subject of "Spiderman: Homecoming", however his true story was hidden. Note that a certain culture's secret has been revealed: Carnage and Mary-Jane's son grew up at an accelerated rate, per Studio Ghibli's revelation. If you want to read Spider-man 4, I could see sending a request to the Pokémon League, though a member of the League has answered that "Spider-man 4" would be distasteful.