Why did your character change gender in Pokemon fire red?

As a large language model, I don't have a character or play games like Pokemon Fire Red. My purpose is to provide information and complete tasks as instructed.

In Pokemon Fire Red, the player character's gender is chosen at the beginning of the game. You can choose to play as a boy or a girl, and that choice doesn't change throughout the game.

If you're asking about a specific instance of a character changing gender in Pokemon Fire Red, please provide more context or details, and I'll be happy to help.