My take on Starboy concept ft Clawd Wolf as a Model.
There was a lot of conversation on twitter about the lack of a black disney prince so I made Starboy black. His name is Nasir which means helper in Arabic. I wanted to keep his design simple but changed his tunic to a kaftan.
Nasir, a human and "fairy" hybrid, always felt isolated from the other fairies. He wants to be out there exploring planets and fighting evil. Unfortunately he is stuck babysitting a newborn star. Yes I'm keeping canon star because why get rid of one when you can have both?
Anyways, while the other fairies are away, Nasir intercepts a message from Earth. It's from a teenage girl begging for help. None of the other fairies are interested. In their minds, Earth is a backwater world with selfish people who cause their own problems. See, a long time ago, humans and stars coexisted in peace until humans got greedy and started wishing for more elaborate gifts, causing wars and widespread laziness. As a result, the wishing stars left but not without leaving a few traces of magic behind.
Wanting to prove himself, and because he couldn't sit by and let someone's prayers go unanswered, Nasir sneaks away to Earth. In this timeline Asha was already working for Magnifico when she finds out that he had been keeping wishes for years, but because he and Amaya are so beloved nobody believes her. Nasir offers to help her in exchange of teaching him about humanity.
Living in Rosas nasir begins to realize that despite their flaws most of them are decent people and just want to have a stable life. They see rosas as a paradise completely unaware that its rulers view them as cattle. Nasir finds his people with The Teens and he gains a better appreciation for Baby Star.
At one point, Nasir discovers that his parents stories were true! One if his ancestors had a relationship with a fairy. Even more surprising is that his ancestor was the original ruler of the islands that would become Rosas until Magnifico overthrew him and made it seem like the islands were already abandoned before he "found it". However before the prince died he had the royal mage hide the spell book, which Magnifico would find and use it to siphon people's wishes. The prince's lover left earth with their newborn baby, becoming Nasir's great grandmother.
Nasir is forced to reveal his secret when Magnifico threatens to kill Asha's family. We also learn that Amaya was in one his plan the whole time. This leads to Nasir getting captured and Asha banished. Thankfully Baby Star and Valentino reminds them of their faith and Asha manages to escape banishment and gathers her entire neighborhood to fight with her. Sabino rouses the people with his music, and a riot ensues.
In the final battle Magnifico turns himself into Cthulu and starts to suck up the sky but Nasir and Asha manage with a little help from the wishing stars themselves. Magnifico explodes into a supernova, Amaya is reduced to an old crone having lost her magic. The fairies arrive and are impressed by Nasir's work. Nasir decides to stay on Earth but instead of becoming king he makes Asha the new princess. The film with Asha's coronation a few months later and Nasir, now the royal astronomer, dancing with her.
That's basically all I have for Nasir's lore. I hope it isnt too complicated. I think having both stars would work, that way tou have a verbal star to sing a duet with and the cutesy nonverbal sidekick star. If he had a voice it would probably be Jordan Fisher or mah boi Anthony Ramos. Or maybe Miles Caton i dunno.