Stylet is an F.A. Girl specialized in aerial combat, her functional wings granting flight. Her armored suit blends dark blue, gray, and white, featuring a shark fin attachment on one leg, long black gloves, and boots marked with white accents. A helmet and a short black metal-fabric dress with white stripes complete her look, alongside light tan skin, blueish-purple hair, and blue-green eyes.

Personality-wise, she commands with a bossy and easily flustered demeanor, often reacting with visible irritation to teasing or surprises. This trait remains consistent. She gradually warms to the affectionate nickname "Sty-ko" from the human Ao Gennai, indicating subtle growth in her interactions. Her aversion to romantic or overly affectionate advances is clear, especially when provoked by the Materia Sisters.

In combat, she excels through agility and ranged weaponry, including a rapid-firing "submarine gun." She later wields the MSG Mega Slash Edge, a large beam sword convertible into an energy bow. Her aerial specialization provides an edge over ground units like Gourai, though she struggles against opponents with superior firepower or speed, such as Hresvelgr.

Factory Advance deployed her alongside Baselard to Ao's residence for data gathering. Across media, she faces recurring comedic misfortunes: enduring battery drain from Gourai abruptly inserting charging cables, suffering defeats in sparring sessions, and becoming a target of Baselard's pranks like stealthily placed stickers. These reinforce her role as a persistent but beleaguered figure.

The film "Kyakkyau Fufu na Wonderland" primarily recaps the anime series, incorporating only brief new scenes featuring group activities. No significant standalone character development or backstory for Stylet is introduced in this film beyond her established arc.