Firefly is a mysterious and powerful character in the game Honkai: Star Rail. As a member of the Stellaron Hunters, Firefly possesses unique abilities related to fire and transformation, and is known for her rebellious spirit and strong sense of justice. She plays a significant role in the story as an enigmatic ally who often challenges the main protagonist’s perspective. Firefly's background is shrouded in secrecy, making her one of the most intriguing and beloved figures in the series.