FX-05 is a Tactical Doll (T-Doll) from the mobile game Dolls' Frontline. She belongs to the AR Team, a group of elite T-Dolls. Known for her cheerful and somewhat quirky personality, FX-05 often displays a childlike curiosity and enthusiasm. Her combat skills are top-notch, making her a valuable asset in battles against Sangvis Ferri. Despite her often playful demeanor, she is fiercely loyal to her team and commander, providing both firepower and emotional support. Her character adds depth to the storyline, balancing humor with intense action.