A member of the Masked Fools, devout followers of Aha, Aeon of Elation, just like Sampo Koski. Inscrutable and unscrupulous, known as the Face Striker. A dangerous master of theatrics engrossed in playing roles. A girl of countless masks and many faces.
Wealth, status, power... None of this matters to me. The only thing that can lure my interest is "amusement."
Also, I throw a very, very mean roundhouse kick!

 Been practicing a mean kick!|Honkai Star Rail|HSR

Firefly, formerly known as AR-26710, was born in the Falakor Galaxy's incubation pod. As a genetically-modified baby, fate left her with one future: To pilot the Molten Knight "Samuel-IV", and join the war between humans and The Swarm.
Her life was on a countdown, but Elio says that this journey will teach her how to live. Despite having a fleeting lifespan akin to that of an actual firefly, she is willing to experience anything and everything. She's secretly "Sam" of the Stellaron Hunters.