Tenaka Chiasa

Shakku Rubin is one of the main Cures from Beautiful Sky Pretty Cure. Rubin is a cheerful and selfless young girl, who attends to Nijiiro Private Middle School. She sometimes is referenced as being the sportiest 14 year old girl. She is the oldest out of three sisters and is the bravest of them. Rubin has the power of red fire and transforms into Cure Phoenix (キュアフェニックス Kyua Fenikkusu). She replaces Cure Crimson as the Pretty Cure of Passion.

Her catchphrase is "Do what you can!" (何ができるか！Nanigadekiruka!).

Personality
Rubin is a cheerful and selfless young girl, who attends to Nijiiro Private Middle School. She sometimes is referenced as being the sportiest 14 year old girl. She is the oldest out of three sisters and is the bravest of them but is afraid of heighst.

Appearance
Rubin has scarlet colored, long hair, tied into a low ponytail. Her eyes are red.

As Cure Phoenix, her hair changes to red.

Relationships
Shakku Ruby -

Shakku Cornelian -

Shakku Akane -

Shakku Seki -

Cure Phoenix
Cure Phoenix (キュアフェニックス Kyua Fenikkusu) is Rubin's Pretty Cure alter ego. She holds the power of passion and controls fire. She replaces Cure Crimson as the Pretty Cure of Passion. Cure Phoenix has strong powers but is afraid of heighst. She transforms by saying Pretty Cure New Rainbow Paint Over!.

Alone, Cure Phoenix can perform Raspberry Burning and Raspberry Strike and later Rainbow Fire with her Rainbow Crystals.

Attacks

 * Raspberry Burning - is one of Cure Phoenix' main attacks.
 * Raspberry Strike - is one of Cure Phoenix' main attacks.
 * Rainbow Fire - Cure Phoenix' upgrade finisher.

Transformation
"Pretty Cure New Rainbow Paint Over!" - Pretty Cure New Rainbow Paint Over! is the official transformation speech used by Shakku Rubin to transform into Cure Phoenix in Beautiful Sky Pretty Cure.

Etymology
Shakku (赤空) - Aka (赤) means "red", a reference to her alter ego as Cure Phoenix and to her theme color. Sora (空) means "sky", which is fitting to the main theme of this season. Her name means "red sky".

Rubin (ルービン) - Rubin is the German translation of the word "Ruby". So she actually has the same name as her mother has and also the same meaning.

Cure Phoenix - Phoenix comes from the name of a beautiful immortal bird which appears in Egyptian and Greek mythology. After living for several centuries in the Arabian Desert, it would be consumed by fire and rise from its own ashes, with this cycle repeating every 500 years. The name of the bird was derived from Greek phoinix meaning "dark red".

Trivia

 * Most of her attacks are similar to Cure Crimson's.