Prince Quartet

Prince Quartet (プリンスカルテット) is one of the minor characters in Alto Astral! Pretty Cure!. He is the prince of Rainbow Music Palace.

Personality
The Prince of "Rainbow Music Palace" and the first child of High Spirits' Royal family member. He get half of the Angelic Power called "The Sun Sword", thanks to that power. Now, he have the ability for sword fighting and can do healing power, but just with his sister and can get everyone's soul as one.