Gladys von Wackenheim, daughter of the famed commander Hero Wackenheim, inherited leadership of the Edellant Kingdom's rebellion against King Hagel after her father's death. She commanded rebel forces for two years, prioritizing strategic avoidance of major offensives. Renowned as Edellant's strongest swordsman, an unmatched strategist, and skilled chess player, she established herself as a formidable military figure.

Physically, she possesses olive-toned skin, striking red eyes, and violet hair styled with spiky bangs framing a shoulder-length straight cut. Standing 166 cm tall and weighing 58 kg, her measurements are 95-60-90 cm with an I-cup bust. Her attire merges functional armor with revealing elements: a crop top, plate armor, spaulders, detached sleeves, a cloak, evening gloves, and a garter belt. Lower-body wear consists of black micro panties, thigh-high stockings, and knee-high boots.

Personality-wise, Gladys exudes confidence and boldness, notably using the masculine pronoun "ore" (オレ). She embodies a smart, cautious, and tomboyish demeanor, driven by a strong sense of honor and duty as a commander. Her strategic acumen routed numerous suppression forces before encountering Lute Hende.

Her combat prowess centers on the Wackenheim Style, featuring techniques like May Rain Thrust (五月雨突き), Helmet Splitting (兜割り), and Charging Slash (突進斬り). Wielding a longsword, she remains peerless in Edellant's swordsmanship.

Her character evolves through interactions with Lute Hende. After losing to him in battle, she unilaterally declares herself his beloved wife, captivated by his honesty and unexpected prowess. A pivotal chess duel against Lute sees her initially dismiss him, but she loses due to his unpredictable moves influenced by laxatives. This defeat shifts her allegiance; she pledges loyalty to Lute and integrates into his faction. Supporting his rise to kingship, she eventually marries him, becoming one of his queens by Sideboob Story 2's conclusion.