Obviously, the main characters are the father and the rainbow - haired girl. The father might be a normal - looking man with a kind heart. And the girl stands out with her rainbow hair, which could represent her unique personality.
Maybe the father discovers the unique rainbow - haired girl in an unexpected place like a magical forest. Then he decides to take her in and protect her from the outside world that might not understand her strangeness.
Well, the Rainbow Girl story could be about a girl who is born from a rainbow. She has a special connection with nature. She travels around, and everywhere she goes, flowers bloom in vibrant colors. She spreads love and positive energy, and she often dances with the animals in the forest, under the arches of rainbows that seem to follow her.
As I don't know the particular 'the rainbow girl story', I can't say for sure who the main character is. It could be the rainbow girl herself, of course.
One of the main themes could be color and beauty. Since she is the Rainbow Girl, colors play a significant role. Another theme might be magic, as she likely has some sort of magical powers related to rainbows.
I recommend the following novels to you:
The main character of One Piece: The Dark Duke is the overlord of the North Sea. His hair is red.
[One Piece King Chaldeans: The main character has rainbow pupils.]
[Random Rebirth of One Piece: The protagonist joins the Red-Haired Pirates. As a temporary crew member, his hair color is also red.]
I hope you like this fairy's recommendation. Muah ~š
The girl in the 'girl bobs her hair story' could be a character created by the author to convey a certain message. Maybe she represents a typical young woman of a particular era who bobs her hair as a form of rebellion or to fit in with a new fashion trend. Without more context, it's hard to say precisely who she is.
I'm not sure as I haven't read this story specifically. But generally, it might be about a girl who has some special or unique qualities represented by her 'rainbow skin', perhaps symbolizing diversity, magic or extraordinary abilities.
Since I'm not familiar with this story, it's difficult to name the main characters accurately. But given the title, the girl with the rainbow skin is surely a main character. There could be a villain or a mentor figure in the story. Maybe there's a character who at first is afraid of the girl because of her strange skin but later becomes her friend, which would also be an important character in the plot.