Firefly is from Stellaron Hunter, usually going on mission with Elio, Kafka, Blade, Silver Wolf. She is actually Sam - the name of the armor she always wears to hide her true identity. Firefly is a kind and sociable person, who showcases care for those around her. Firefly suffers from Entropy Loss Syndrome, which causes the body to slow down progressively over time, until she totally disappears from the world. Her personality seems to change completely when she puts on the Sam armor to fight.