Aether is a young traveler from another world who seeks to reunite with his lost sister, Lumine. He possesses a strong sense of justice and curiosity about the world around him. As he journeys through Teyvat, he encounters various cultures, challenges, and allies, all while trying to uncover the secrets of his past and the fate of his sister. With the ability to harness elemental powers, Aether adapts to different situations and fights against formidable foes. His determination and resilience make him a reliable companion, and his kindness resonates with those he meets along his journey.