Kelsey Ace (known as Hino Akane in Japanese) is a 14-year-old student at Rainbow Hills Middle School. Her family runs an okonomiyaki restaurant where she often works alongside them, indicating skill in Japanese cuisine preparation. Academically, she prioritizes volleyball over studies, determined to become her school team's ace attacker. Independent by nature, she typically refuses assistance but made an exception for Emily due to her sincere enthusiasm. Her appearance features dark red eyes and short red hair styled in a ponytail with messy bangs swept right, secured by yellow hairpins. Casual outfits include a loose orange long-sleeve top featuring pastel yellow stripes and red pockets over a dark red tank top, paired with blue pants and dark red flats. Summer wear consists of a light orange tank top over an orange T-shirt, khaki shorts, white stockings, and tan shoes. Kelsey exhibits a tomboyish, competitive, and passionate personality, often serving as the class jokester with puns and light-hearted teasing. She frequently targets Lily about her crybaby nature, though without malice. She openly dislikes overly cute or sentimental things but harbors a soft spot for gorillas. Her fears include heights and the villain Ulric. Despite an initial reluctance to accept help, she demonstrates fierce loyalty, impulsively aiding friends in danger even without powers. Her closest bond is with Emily, beginning when Kelsey intervened during Emily's nervous classroom introduction. Kelsey later struggled against volleyball teammate Jasmine until Emily offered support, improving her skills. During an attack by Ulric, Kelsey witnessed Emily, as Glitter Lucky, overwhelmed by a Buffoon. Recalling Emily's earlier help, Kelsey physically intervened, triggering a magical orange light that granted her a Glitter Pact. Following Candy's instructions, she transformed into Glitter Sunny, joining the Glitter Force. As Glitter Sunny, her hair and eyes brighten to orange, her hair lengthens into a loose style featuring a top bun adorned with a white wing accessory. The transformation includes a white tiara with an orange gem, helix-ear earrings, a burnt orange choker, and a pastel orange dress with burnt orange and white detailing. Feathery white sleeves feature orange spheres, an orange chest bow holds a gold brooch, and burnt orange shorts pair with tall white boots featuring burnt orange ribbons. Glitter Sunny wields pyrokinetic powers and superhuman strength, enabling feats like lifting Buffoons single-handedly or creating earthquakes with punches. Her signature attack, Sparkle Fire, involves charging her Glitter Pact to form a fireball, which she strikes like a volleyball spike. An upgraded version, Sparkle Fire Inferno, debuts later. She performs combination attacks like Sparkle Fire Shot with Glitter Spring. Group attacks include Tiara Mode Torrent (using jewel-shaped Glitter Charms), Rainbow Burst (using Princess Wands in Princess Mode), and Royal Rainbow Burst (enhanced with Candy and the Royal Clock). Additional transformation modes alter her appearance: Tiara Mode replaces her tiara with a gold crown featuring a red circle, swaps earrings for gold ribbon designs with orange hearts, and turns the hair wing gold. Princess Mode elongates hair into a bow-like bun with curled locks, adds a halo, and overlays a ruffled cream dress with a pastel orange ribbon. Royal Mode enhances the crown with red diamond gems, adds droplet earrings, lightens dress colors, and incorporates a feathery cream cape, small wings below the brooch, gem-adorned wrist pieces, winged boot cuffs, and functional white wings. Kelsey maintains key relationships: a protective friendship with Emily, whom she describes as a scatterbrain capable of seriousness; teasing but supportive interactions with Lily, acknowledging her artistic talent; a friendly athletic rivalry with April based on mutual respect; and admiration for Chloe's academic excellence and leadership roles. Her name carries specific meanings: "Kelsey" translates to "brave," "ship's victory," or "ship's island." Her Japanese name, Hino Akane, combines "sun field" ("Hino") and "madder red" ("Akane"), referencing a deep red hue.