Jim is actually like Ranma from Ranma 1/2, where something changes him into a girl, and vice versa (I kinda looked into the novel that he/she is in)
He's a secret agent maybe hes in disguise.
Maybe they will make a second card named Jenna. LOL
Jackie is a poor lost guy after a real nasty boozer up. I understand that , eventhough i never let myself hit that bottom , and even respect that ;) Jim , on the other hand, is a secret agent , spy ; camouflage and deception is his main weapon . And i admire that :D