Poppy Pimpin is a key supporting character in the anime series 'Peach Boy Riverside.' She is a demi-human with the appearance of a small, cheerful elf girl who often travels with the protagonist, Sally. Poppy is known for her energetic personality, curiosity, and mischievous streak, which often leads to comic relief and lighthearted moments. Despite her playful nature, she is brave and loyal, aiding her friends in battles against oni and other threats. Her unique perspective adds depth to the group dynamic and highlights themes of prejudice and acceptance.