It seemed like it would be simple enough, at first, but that's when he learned that lives would be on the line. Not only lives, but the fate of the city itself... And to him, it sounded fun. With Neo Arcadia at stake and the four guardians as 'game pieces', they would play a game...

As it turns out, X is really bad at math, despite being named after a variable. Zero was instructed to teach him, but Zero isn't exactly a very good teacher, and thus the two end up spending their time making stupid math jokes and drawing all over their math papers. Needless to say, neither of them learns a thing, but whatever!