Delta, originally named Sara, is a wolf therianthrope and the fifth founding member of Shadow Garden, holding the fourth seat among the Seven Shadows. She grew up in a therianthrope tribe, developing a life philosophy centered on strength and self-reliance. By age three, she decided hunting defined her existence, a belief solidified after her mother's death from illness. Delta concluded only the strong dictate morality and direction, leading her to show contempt for the weak, including family. She joined Shadow Garden when its leader recognized her combat potential. Her appearance features distinctive wolf traits: large canine ears, a fluffy tail, and purple eyes with vertical slit pupils that turn circular when happy. She possesses an athletic, curvaceous frame with chiseled muscles. Her standard Shadow Garden attire is a customized slime bodysuit adorned with black and gold decorations, fur at the collar, wrists, and ankles, and twin vertical gold lines with violet gems on her torso. Media variations include detailed grooves on her leggings and belt wraps on her arms in the light novel, and occasional mask use for concealment in the manga. During winter or casually, she wears practical outfits like dark suits or shorts with stockings. Delta's personality reflects a simplistic worldview where strength dictates all value. She dismisses intellectual tasks and complex strategies, focusing solely on physical solutions. She displays docile, almost childlike loyalty towards her Shadow Garden allies, viewing them as family. This shifts to brutal ferocity against enemies, whom she eliminates without mercy. Impulsive actions often override her discipline, causing frustration among peers. She expresses a naive desire to produce strong offspring with Shadow, citing her beastkin heritage. Her lack of shame is evident when her bodysuit dissolves; she prioritizes function over modesty, crafting makeshift armor to keep fighting. In combat, Delta excels in raw physical power, acknowledged as the most physically talented among the Seven Shadows. Her abilities include superlative strength, speed, and sensory capabilities—her hearing and smell surpass even magically augmented peers, allowing her to track targets through advanced camouflage. She employs magic intuitively to amplify her attacks, lacking formal control. Her fighting style relies on brute force: she wields slime weapons like oversized swords or claws, generating shockwaves with strikes. She demonstrates adaptability, such as enhancing her lungs to unleash a destructive roar that repels projectiles and damages surroundings. She cannot strategize mid-battle, relying purely on instinct. Her equipment includes the standard Shadow Garden slime bodysuit and customizable slime weapons. Her character was inspired by a dog the series' author once owned. Media inconsistencies exist: the manga uniquely features her during Midgar Academy's assault, while other media assign this to Gamma. Game-exclusive elements show her using training weights to regulate her power. Delta's core traits remain consistent across media: unwavering loyalty to strength, familial devotion to Shadow Garden, and a feral approach to conflict. Her role involves direct combat missions like assassinations or overwhelming military campaigns, avoiding tasks requiring intelligence.