Kujou Hikari

Hikari Kujo is considered to be the "life" of the Queen, a part of her spirit that appeared when the Queen as a whole broke up into three parts: the Heartiels, the embodiment of her will; Hikari, who represents the Queen's life; and the Queen Chairect, her heart. She has lost all of her abilities and memories from being Queen and is living as a passive human girl. She makes friends with Nagisa and Honoka and works from Akane' mobile store. Her alter ego is Shiny Luminous (シャイニ・ルミナ).

Personality
After the first season, Hikari lost all of her abilities and memories as the Queen and lives life as a passive human girl. She makes friends with Nagisa and Honoka. She currently helps out Akane at the takoyaki cafe. She is really nice and polite which worried Porun, since Nagisa and Honoka told him being mad at someone means they care about them (since she never yelled at Porun).

Shiny Luminous
"Sparkling life, Shiny Luminous! Hearts of light and wills of light... combine them all as one!" "Kagayaku inochi, Shaini Ruminasu! Hikari no kokoro, hikari no ishi! Subete hitotsu ni suru tame ni!" After Hikari came to Nagisa and Honoka's world, Porun stated he was getting ready for an "awakening". During the fight against Circulas, the said awakening came to pass. Porun became the Touch Commune, allowing Hikari to become Shiny Luminous. After Lulun appears, she gets the Heartiel Brooch on her bow.

As Shiny Luminous, she wields the Heart Baton, and uses this for Heartiel Action, as well as combining strength with Cure Black and Cure White to perform Extreme Luminario, later upgraded to Extreme Luminario Max for the final battle as the reborn Queen.

Power of the Phoenix
In Futari wa Pretty Cure Max Heart the Movie 2: Friends of the Snow-Laden Sky, Hinata ran out of power after the fight against Frozen and Freezen and was out cold. Shiny Luminous was inspired by Hinata's desire to fly, and encouraged her to not give up. She, Cure Black, Cure White, the Sage of the Garden of Clouds, Muta, Mepple, Mipple, Porun, and Lulun all transfer their powers to the newborn. This allows Shiny Luminous to undergo a second transformation, and turn Hinata into a phoenix.

Luminous' hair gets slightly longer, and feathers are hanging after her back and shoulders, whereas the cloth covering the lower level of her dress has increased in size. Her bow has become longer, and even the design is different. She gets also a boost in powers, as she used her powers to restore all of Hinata's energy.

In this form, the Heart Baton becomes a lighter pink, and uses fire powers. After awakening Hinata again, her upgrade disappears, and is never seen again. This may be because it was summoned by Hinata, who is now in the Garden of Clouds as a fully realized phoenix.

Etymology
"Hikari" is Japanese for "light" and is related to her role as the Queen of the Garden of Light.

Trivia

 * While all other main Cures in the series after Futari wa Pretty Cure Max Heart have pink as their main color, Shiny Luminous is the only one of the three in her series with with pink as her main color, though she is not even a real Cure.