Pokemon: From the Start, I Have a Water-Absorbing Squirtle

[Pokemon arrive + slow burn + training and development + no Legendary Pokémon early on + not invincible + System-powered] [An author's completed 1.3-million-character novel is available as proof] Also known as: “I Came to the Trainer World and Just Want to Keep My Head Down and Grow, but the System Keeps Giving Me Too Much,” “Reincarnated in Another World, I Started as a Prisoner and Was Forced to Become the Strongest Trainer,” “My Shiny Green Caterpie Makes a Comeback,” and “You Think I'm a Bug Catcher, but I'm Actually a Dragon Tamer” After his soul transmigrates into a parallel world, he starts out as a prisoner, only to discover by chance that he's in a world with Pokemon! At first, he only wanted to rescue his Pokemon. Then he happened to encounter the egg-stage form of the Fire-type Starter Pokémon Charizard, and got an incredibly lucky start from the start. But after going through so much to hatch this Charmander, is there something a little off about it? Aren't you a Fire-type Pokemon? Why are you using Water Gun?! Watch as this water-spouting Charmander gradually sets out on the path to becoming the ultimate nuclear bomb, and see how my Shiny Green Caterpie makes a comeback and takes on Rayquaza!