April Swanson, known as Midorikawa Nao in the original Japanese, stands as a core member of her superhero team. The oldest of six siblings, she steps in for childcare when her parents are away, showcasing strong family dedication and a protective streak. Her personality blends straightforwardness with a powerful sense of justice and notable courage, though she specifically fears insects, heights, and ghosts – fears she works to overcome through her experiences. Academically, she attends Rainbow Hills Middle School, where she captains the soccer team and gains recognition for outperforming male peers in sports. Her closest bonds include a competitive yet supportive friendship with Kelsey, built on similar personalities and shared athletic interests. She maintains a long-standing childhood friendship with Chloe, often seeking comfort from her during moments of fear. Emily admires April's bravery and family commitment, traits that motivated efforts to recruit her. April's siblings remain central to her life, with her deepest fear being the potential loss of family members. Transforming into Glitter Spring (originally Cure March) by activating a Glitter Pact with a Glitter Charm and declaring "Glitter Force Makeover!", she emerges declaring "A force as strong as life itself! I'm Glitter Spring!". This form harnesses wind-based powers granting superhuman speed, evident in her combat style. Her appearance changes significantly: her hair brightens, thickens, and styles in a ponytail with curled pigtails framing her face, complemented by a winged gold crown, an emerald-green dress with feather accents, and distinctive boots. Her combat centers on wind manipulation, primarily through the Sparkle Shot (March Shoot), propelling a concentrated gust as a soccer ball-shaped projectile. Upgraded attacks include Sparkle Shot Maximum Impact (March Shoot Impact), a powerful physical kick enhanced by wind energy, and Sparkle Fire Shot (Fire Shoot), a collaborative wind-and-fire attack with Glitter Sunny. She participates in team attacks like Tiara Mode Torrent (Rainbow Healing) using jewel charms, Rainbow Burst using Princess Wands in Glitter Princess Mode, and enhanced variants Royal Rainbow Burst and Miracle Rainbow Burst requiring advanced forms and items like the Royal Clock or Miracle Jewel. Power progression includes multiple transformations: Tiara Mode adds a gold tiara and enables Tiara Mode Torrent. Glitter Princess Mode elongates her hair, adds a light-green overdress and halo, and facilitates Rainbow Burst attacks. Ultra Power (Ultra Mode) surrounds her with a green aura, boosting physical and magical capabilities for stronger individual attacks. Royal Mode introduces a feathery overcoat, angelic white wings, flight, teleportation, and access to advanced group techniques. Notable trivia includes her status as the only team member wearing a forehead tiara instead of a crown. Her name "April" reflects the spring month, aligning with her Glitter Spring identity, while "Midorikawa" translates to "green river," emphasizing her elemental theme. Specific fears of bugs and ghosts are depicted in designated episodes, alongside revelations of her substantial appetite.