In many series, the themes of ego and self-discovery play a significant role in the character development and overall plot. Ego often represents the character's sense of self-importance, pride, or identity, which can lead to internal conflicts or growth throughout the series. On the other hand, self-discovery is about characters exploring their true nature, values, and purpose, leading to personal growth, transformation, and a deeper understanding of themselves and the world around them. These themes add complexity and depth to the characters' journeys and contribute to the overall narrative of the series.