Summoning A Villainous Harem

Ryan is your typical 17 year old...so he is an asshole. The God of pretty much everything decided that Ryan is the perfect candidate to fix his mistake. Using the best operative that the God had at his disposal, he reincarnated Ryan into a world that had characters from many different anime, manga, movies, TV shows, games, etc. All just waiting to become a part of his multiverse harem. However... Ryan is only supposed to add the sexiest villains into his harem?!?!? At least he got the Summoner system, so that should help...right? Wait...why can he only summon female villains? Will Ryan, now known as Nicholas, be able to tame and conquer these dangerous and sexy women? A/N - This is my first fan-fic... so don’t expect much. Any helpful criticism as well as any advice on my writing will be highly appreciated! This is a wish fulfillment story...so you guys should mainly expect “plot” over plot. I don’t own any of the pre-existing characters used within this shitty “story”.