Based on available information, Pyonkichi is a rabbit student attending Mimi-sensei's elementary school in the "Soreike! Anpanman" anime series, alongside classmates Usako and Usao. He participates in group activities within the series, including appearing in classroom scenes and contributing to building a tricycle for Anpanman in his debut episode. No specific appearances in the movie "Yuuki no Hana ga Hiraku toki" or other extended media are documented.