Firefly is a mysterious character and a member of the Stellaron Hunters in the game Honkai: Star Rail. She is recognized for her small stature, mechanical enhancements, and fiery spirit. As a Stellaron Hunter, Firefly is involved in operations to collect powerful objects known as Stellarons, playing a crucial role in the organization's missions. Her enigmatic personality and ambiguous motives make her a compelling figure, as she often challenges the main characters with her unpredictable actions and unwavering resolve.