Fan Casting Invader Issei

After a battle with his archnemesis Dib Membrane, Zim finds himself in the body of a teenage boy named Issei Hyoudou after his pak attaches itself to Issei's corpse. Not only that, but Zim's also discovers that he has been isekai'd into an alternate world where devils, fallen angels, and angels fight over stupid stuff. With the help of his robotic companion Gir, Zim sets out to conquer this strange new world in which he finds himself. Little do they know, that's easier said than done. Rias Gremory, the heir to the Gremory royal family of devils, soon discovers Zim's plot for world domination and sets out to stop him. Will Zim achieve his goal of world domination? or will Rias put a stop to his evil scheme?