Sol Pepper was created to be the rival of Juliet Valentine. Rival characters are a common trope within the anime community, for example the most common rival character in anime is Vegeta from Dragonball Z. Vegeta always try’s to get stronger than the main character Son Goku, and even though it happens rarely, we love to see Vegeta try. Sol Pepper fulfills that need for Juliet, a rival, someone who is always pushing Juliet to be better.