Movie
Description
Kujou Hikari emerged as a fragment of the Queen of Light's essence, embodying her "life" after the Queen divided into three: the Heartiels (her will), Hikari (her life force), and the Queen Chairect (her heart). Manifesting in the human world devoid of memories or powers, she assumed a passive human identity. She enrolled at Verone Academy and began working at Fujita Akane's mobile food stall, introduced as Akane's cousin. Her initial demeanor reflected inexperience, marked by naivety, politeness, and a gentle, observant nature. She rarely showed anger or strong emotions, often internalizing worries to avoid troubling others.

Significant relationships defined her human life. Misumi Nagisa and Yukishiro Honoka became her closest friends and protectors, guiding her through daily life and battles. She formed a maternal bond with the fairy Lulun and a patient dynamic with Pollun, her transformation partner. Fujita Akane offered mentorship and familial support, while classmates Tabata Nao and Kagayama Miu aided her school acclimation. Recurring encounters with a mysterious boy, later revealed as her biological brother Kujou Hikaru, fueled her curiosity about her origins.

Using Pollun in his Touch Commune form, Hikari transformed into Shiny Luminous, a distinct warrior persona separate from the Pretty Cure team. Her transformation phrase was "Shining life, Shiny Luminous! The light's heart and the light's will, for the sake of uniting all as one!" As Shiny Luminous, she wielded the Heartiel Baton, enabling her signature support technique, Heartiel Action, to slow enemy movements. Later, she gained the enhanced Heartiel Brooch from Lulun. She collaborated with Cure Black and Cure White in the combined attack Extreme Luminario, channeling rainbow energy through her baton to amplify their power. Unlike traditional Cures, Shiny Luminous focused on defense and support rather than direct combat. Her design featured long blonde pigtails, gold heart-shaped earrings, and a light pink ruffled dress with heart motifs, receiving visual upgrades in "Super" and "Phoenix" forms during cinematic appearances.

Her journey centered on self-discovery and sacrifice. She gradually understood human emotions and relationships, evolving from a passive observer to an active participant. When the 12 Heartiels neared collection, she vanished, awakening in the Dark King's realm to confront her destiny of reuniting with the Queen. Despite Nagisa and Honoka's attempts to save her, Hikari chose to initiate the Queen's resurrection to protect the world and her loved ones, motivated by her newfound appreciation for life forged through human experience. After the Queen's revival, Hikari unexpectedly separated from her, returning to human form alongside her brother Hikaru, allowing her to live independently while retaining her Shiny Luminous identity.

In later media, including the *Chō Tanpen PreCure All Stars GoGo Dream Live!* short, Shiny Luminous appeared alongside multiple Cure teams during a celebratory performance. When a composite enemy attacked, she and Milky Rose jointly blocked its energy blast, enabling all Cures to execute a unified finishing move. She also resurfaced in *Kibou no Chikara ~Otona Pretty Cure '23~*, aiding in sealing a threat and later questioning the ethical costs of protection during the aftermath.