Multiverse with the Ultimatrix

This is your typical isekai story where our protagonist James dies and is reincarnated into the Multiverse. He will obtain the Ultimatrix. The story will be exploring different worlds from a hub world. Each universe will largely follow the cannon with a few twists and turns. The girls will be present in the story and have their own story. They might fall for our protagonist a bit easily. There is no system so the protagonist is on his own however the hub world will provide basic resources. The character will be strong but not overpowered. Current World: Family Guy Kino Der Toten Now I'm a Demon Lord! Happily Ever After with Monster Girls in My Dungeon Aladdin High School of the Dead The list will be updated as the story progresses. All characters will be 18+ that will engage in a sexual activity Additional Tags NSFW Scenes 18+, harem, adventure, fun, zombies, mechs