Earth has a complex personality, characterized by insecurity, self-centeredness, and a short temper, often leading to dramatic and arrogant behavior, but also possessing a welcoming, bright, and genuinely curious nature, a capacity for change, and a fundamental desire to support life. He is a protagonist who evolves over the series, sometimes showing kindness and compassion, especially after taking part in self-improvement, even while sometimes resorting to bullying or rudeness towards others