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Koseki Shinju

Koseki Shinju
虹石 真珠

Kōseki Shinju
Personal Information
SeasonSky Pretty Cure Series
Title(s)Angel Princess
Eye ColorGolden
Hair ColorDark Brown (Shinju)
Light Blonde
Home PlaceHabanohara
OccupationGuard of the Colors
Family Information
Magical Girl Information
Alter EgoRainbow Angel
ElementThe Sky
PowerEternal Light
RainbowSeven color Rainbow
WeaponsStarlight Crystal
Theme ColorRainbow
Anime Information
DebutChapter 01
Image Gallery

Koseki Shinju is one of the Cures of the Sky Pretty Cure Series. She is the main and only protagonist of the Manga story Sky Pretty Cure: Legend of the Rainbow. Shinju is a graceful, but very energetic young residents of Habanohara, the ancient Feather-Castletown.

Shinju transforms into the powerful warrior of the Sky named Rainbow Angel (レインボーエンジェル Reinbō Enjeru?), or sometimes refered as Angel Princess (エンジェル姫 Enjeru hime?) or Angel Princess (天使姫 Tenshi hime?), who fights against the darkness with the power of eternal light.

General Information


Shinju is a graceful, but very energetic young residents of Habanohara, the ancient Feather-Castletown. Shinju traveled around Japan for a long time and came to Habanohara in the first chapter. Shinju is always looking for an adventure or something to do. She likes to help, while she is also very courageous and would take every challenge. However, she is very bad in accepting that she can't do everything.


In civilian, Shinju wears a green kimono that has a short, dark green skirt. She wears black arm protectors similar to those a warrior wears. She wears a black chest armour with golden trims which is tied around her belly by a dirty green ribbon. The ribbon is tied to two bows at each side of her body. Although it is a chest armor, it doesn't reach to her chest. She wears grey sandals. Shinju has dark brown, short hair that reach to her shoulders. She has straight hair. Her bangs have two pearls close to the end. One pearl is yellow while the other is orange. Her eyes are blue.

As Rainbow Angel, her hair starts growing and turns blonde. A small part of her bangs is now covers by a cyan green, bracelet-like pearl. Her hair now reaches to her hips. She now wears a kimono-like dress of which the upper part is light blue and one sleeved. The dress has a short, frilly sleeve. She wears a arm warmer on the arm with the sleeve, which is be left. The arm warmer has the same color as the upper part of the dress. On the other the right arm, she wears an arm warmer that resembles a sleeve of a kimono. That one also has the same color as the dress has. The skirt of the kimono is dark blue but doesn't even reach her knees. She wears blue and grey sandals and light blue socks. Her eye color stays unchanged. She wears cherryblossoms in her hair.



  • Not much is known about Shinju's family. Only that they lived far away from Habanohara and Shinju liked spending time with her grandmother.


  • Mikawa Ken'ichi - A going-to-be warrior of Habanohara, who becomes a friend of Shinju fast.


Koseki (虹石?) - Koseki comes from Kō ( niji?) meaning "rainbow" and Seki ( ishi?) meaning "stone". So Koseki means "rainbow stone" and is a complete reference to the Sky Pretty Cure Series, of which the main themes are colors and jewels, as well as her alter ego, Rainbow Angel. The only theme of the Series that is missing, is the sky.

Shinju (真珠?) - Shinju comes from Shin ( ma?) meaning "real", "true" and Ju ( tama?) meaning "pearl". Together Shinju means "true pearl" or just "pearl".

Rainbow Angel - Her official name and the name she became a legend with. It comes from the words "Rainbow" the arch appearing in the sky after it rained while the sun was shining. A rainbow includes all seven colors existing. And an "Angel" a, usually seen in white, magical creature that comes from heaven.

Angel Princess - The actual official title and the name she was mostly called by the inhabitants of Habanohara and Catastrophe.

Pretty Cure

Rainbow Angel

"Eternal light of the seven colored rainbow! Rainbow Angel!"
Nanairo niji no eien no hikari! Reinbō Enjeru!

Rainbow Angel (レインボーエンジェル Reinbō Enjeru?) is Shinju's alter ego and the powerful warrior of the sky and the rainbow. As Rainbow Angel, Shinju's short, dark brown hair becomes wavy, grows and turns into a blonde shade. She uses her Starlight Crystal to use attacks and transforms by shouting Gather the colorful stars of the world! while she uses no item to transform.



Gather the colorful stars of the world! is the transformation phrase Shinju uses to transform into Rainbow Angel.



  • Although her theme color is confirmed to be rainbow colored, her outfit is completely in blue.
  • Even though the official name of her alter ego is Rainbow Angel, most people from Habanohara call her Angel Princess (エンジェル姫 Enjeru Hime?).




Sky Pretty Cure Series Characters
Pretty Cures Akahane Ruby/Cure CrimsonKiishi Topaz/Cure SaffronMikanki Amber/Cure SiennaMidorikusa Emerald/Cure CyanAomizu Sapphire/Cure AzureShirosora Diamond/Cure WhitneyKoshokukoi Rubellit/Cure HeatherMurasakiiro Amethyst/Cure LavenderRainbow Angel
Skyriver ScarletYellowMandarineGreenBlueWhitePinkPurplePrincess Alexa
Magic Triangle FeatherMelody
Elite Warriors HollowBlankLooVoideTimeBreakKatahowaCatastrophe
Dark Jewel Black DiamondOnyxRuririCure ShyamaBreakJewelrayu
Cursed Tunes YakyokuRequiemSerenadeBoleroMinuetLullabyDarama
Last Warriors CatastropheModokunMayonakaKitainAwaneTamashiMegahowa
Supporting Akahane RobinKuraisoba QuartzYoiki ChrisKurigami Yumi
Family Akahane RobinAkahane AyaneAkahane DaisukeKiishi MitsukoKiishi KoukiKiishi KazukiMikanki HaruMikanki KenshinMikanki HinataMidorikusa TsubakiMidorikusa SakuraMidorikusa IsamuAomizu YukiAomizu SkyeAomizu KaitoShirosora KumikoShirosora ChinatsuShirosora HirotoKoshokukoi ReiKoshokukoi TakumiKoshokukoi ManamiMurasakiiro HarunaMurasakiiro AyumuMurasakiiro AsukaMelikaHashimoto AkiraAzizKalenaKallistoKalliope
Movie BerylTurquoisePrincess AlexaMarcasiteTanbagaQueen NephriteSilver GuardsAgateIron
Minor Characters Ichina UmekoKoizumi NanamiYoshida-sanPrince CitronGothelRenka KatsuoTeruiro YoshiroMakoto MasaruHanazawa KimochiHanazawa AiMaizumi KanaTimyKilaCharlieAihara ShizukiCeruleanVanilla
Manga (1) Akahane Robin/Cure CarminePikara
Manga (2) Koseki Shinju/Angel PrincessMikawa Ken'ichiEternal DarknessHoshikawaTeacher
Additional Paladin of the StarsShirosora YoshihiroMieMisakiWatanabe YutaOshiro HiroshiHamasaki ShoutaTachibana MikiFukakawa RyotaKoriRuhaUkkaJaronPhilosophy Mentor
5th Season Akahane RubyKiishi TopazMikanki AmberMidorikusa EmeraldAomizu SapphireShirosora DiamondKoshokukoi RubellitMurasakiiro AmethystKuraisoba QuartzAkahane RobinYoiki ChrisKurigami YumiWhiteAkahane AyaneAkahane DaisukeMikanki HaruMakoto MasaruMia AnabelRenka KatsuoShirosora ChinatsuChloeAziz ZeremkKalena ZeremkKalliope ZeremkKallisto ZeremkVoide Cotoi
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