|This is part of the Sky Pretty Cure Series!|
|Season||Legend of the Rainbow|
|Home Place||Skyriver (currently)|
|Occupation||Paladin of the Stars|
Powers and Abilities
As Paladin of the Stars, Hoshikawa has the power to create portals to other worlds and belongs to no world, though they mostly seen at Skyriver. The Paladin of the Stars has the power to manipulate time and space, which not seen often. But he can also fight with his powers, using the powers of the stars, which have only 5/10 of the strength of the eternal light.
- Koseki Shinju - The powerful warrior of light which Hoshikawa wants to support with his powers. He also tries to give her all information she needs to fight the eternal darkness.
- Mikawa Ken'ichi - Shinju's mortal friend, who seems to have a lot of potential to Hoshikawa. Though he is no warrior, he tries to help Ken'ichi with his fights and studies.
- Hoshikawa is the first character whose real name is unknown.
- His name literally means "star river".
- Hoshikawa is the first known Paladin of the Stars that was mentioned in the series. The second was Kuraisoba Quartz from the anime seasons.