Chikorita was originally battled by Ash and severely injured by accident. After taking it to the Pokémon Center it was kidnapped by Team Rocket but then found by Ash who managed to befriend it. Ash ended up capturing it and it started getting deep feelings for Ash and even got jealous of Pikachu who was always out of it's Pokéball with Ash. It eventually evolved into Bayleef to get out of a trap set by Team Rocket.
After evolving from Chikorita, Bayleef kept it's longing feelings for Ash which did end up getting it in trouble on several occassions. However after getting used to its size, it managed to become a vital part of Ash's team and helped win many Gym & League battles. Ash left it at Oak's when he decided to make a fresh start when he left for Hoenn.
Past Rounds