Out of curiousity, where did you get your ideas for your fanfic?

Me? After my incomplete trainer fic was left collecting dust, I somehow decided to revise it after I picked up an issue of Shonen Jump (a monthly translated manga anthology). It was the manga Naruto that got my creative juices flowing, especially about the part where the spirit of the demon fox was sealed inside a newborn baby. An episode of Yu-Gi-Oh also gave me an idea for vessels (spirits being held inside living beings). The idea of a Pokémon being a vessel never left my mind since.