Lumine, known as the Traveler, fell from space with her twin brother Lumine 500 years ago. They were separated by an Unknown God, and upon their reunion, Aether had become the prince of the Abyss Order. Lumine is determined to get her brother back and redeem him, so she travels the seven nations to find him. On the way, she hopes to put a stop to the schemes of the Fatui and the Abyss Order. She is a quiet girl, but still genuine and earnest. She happens to charge into danger recklessly.