April Swanson, known in Japanese media as Midorikawa Nao, serves as a primary member of her superhero team. Her civilian look features dark green eyes and short hair pulled into a ponytail secured by a yellow bow. She typically wears an olive and yellow top decorated with badges, dark olive shorts, orange socks, and red-and-black boots. Summer variations include a mint top with a pale camisole, a denim skirt, and brown flats with olive socks. Transformed into her alter ego, Glitter Spring, she wields wind and breeze powers, expressing them as superhuman speed fundamental to her fighting. This form changes her appearance significantly: her hair brightens, thickens into a ponytail, and features curled pigtails framing her face, accented by a gold winged crown, a green choker, and a white forehead piece holding a green gem. A light green dress showcases dark green and white feathered details, paired with emerald shorts and matching boots. Further evolutions include Tiara Mode, adding a gold crown and angel wings; Princess Spring, extending her hair and featuring a ruffled mint dress with a halo; and Royal Mode, dramatically elongating her hair, lightening her dress colors, and granting large white wings alongside amplified flight and teleportation abilities. She possesses a strong sense of justice, rarely tolerates wrongdoing, and displays notable courage. Significant fears include insects, heights, and ghosts. A competitive streak surfaces during sports. While occasionally forceful, her underlying kindness and popularity stem from her good-hearted nature. Family holds paramount importance, especially her six younger siblings, whom she often cares for when her parents are absent; she deeply fears losing them and actively engages in their well-being. Her team dynamics include a rivalry-turned-friendship with Kelsey due to similar personalities; mutual admiration with Emily, who respects her bravery and family dedication; and a longstanding childhood friendship with Chloe, a classmate and neighbor who provides comfort during moments of fear; they frequently support each other. Her transformation activates by using a Glitter Charm on a Glitter Pact, declaring "Insert Glitter Charm!" and "Glitter Force Makeover!" A powder puff materializes, generating a wind triangle as she chants "Glitter Puff! Apply shades of power!" Sequential elements appear—armbands ("Glitter Bands!"), boots ("Glitter Boots!"), and her dress ("Spring has sprung!")—culminating in her landing appearance where she states her catchphrase: "A force as strong as life itself! I'm Glitter Spring!" Combat techniques feature Sparkle Shot (kicking a wind-formed energy ball) and its enhanced form, Sparkle Shot Maximum Impact, used during Ultra Power activation. Collaborative attacks include Tiara Mode Torrent, Rainbow Burst, Royal Rainbow Burst, and Miracle Rainbow Burst, each requiring specific group formations and items like Princess Wands or the Royal Clock. She also executes Sparkle Fire Shot with Glitter Sunny, merging wind and fire elements. Power-ups augment her abilities: Tiara Mode (via Tiara Charm) enables Tiara Mode Torrent; Glitter Princess Mode (using a clover Glitter Charm) facilitates Rainbow Burst variants; Ultra Power boosts physical and magical strength for advanced attacks; Royal Mode further amplifies powers, enabling flight and teleportation. Trivia notes her unique tiara placement among teammates, athletic superiority over most male peers, and substantial appetite. Etymology connects "April" to spring, reflecting her Glitter Spring identity, while her Japanese name "Midorikawa" ("green river") and "Nao" ("straight" or "straightforward") align with her direct personality.