The main character, Hazel (Maron in the original Japanese version), sets off to catch Pokémon after a scientist named Grandpa agrees to make a love potion if she catches Pokémon. Hazel is after the heart of a boy named Almond. Most of the Pokémon in the manga series can speak a human language. The manga’s plotline has nothing to do with the original video games. Taken from Wikipedia.