Once upon a time, the Number World ended at 66. It was a boring place where everyone was "even" and symmetrical. One day, 6, a curvy guy with a bit of a belly, was wandering in the "Math Desert" when he tripped over a weird, skinny stick poking out of the sand. "Hey! Watch it, you oversized donut!" the stick yelled. It was 7—a sharp, moody teenager with a flat-top haircut who refused to bend for anyone. 6 stared at him. "You look like a broken hockey stick. Want to hang out?" 7 shrugged. "Whatever. Just don't touch my hair." They stood next to each other, and BAM! The universe glitched. 67 was born. The other numbers were horrified: 66 fainted because he was no longer the biggest boss. The Evens screamed, "It’s hideous! It’s not divisible by 2! It’s... PRIME!" 67 didn't care. He was the first "Edgy Teen" of mathematics—too stubborn to be divided by anyone except himself and 1. He just stood there, looking like a pear holding a lightning bolt, making everyone else do extra homework for eternity. And that’s why 67 is so grumpy: he’s stuck forever next to a guy who looks like a circle with a tail.