This is interesting. Bulbasaur is the first Pokemon listed in the Pokedex, Mew is the ancestor of all Pokemon, Rhydon was the first Pokemon ever designed, and according to Pokemon mythology, Arceus was the first Pokemon to come into existence. So... every answer is correct?
(Open RP, I'm a girl, your character can be whatever you like. Please be literate.) I was just starting out as a Pokemon trainer, and I'd just gotten my first Pokemon... my very own Eevee! He was so adorable, I couldn't bear to keep him cooped up in a Pokeball. I was walking through the halls of the gym with him at my heels, and he suddenly took off running. I gasped and went after him, and when I caught up, I saw him playing with another trainer's Vulpix. "Oh... hi!" I say to the trainer.