Monsieur Daymon Goco and Madame Celeste Fanila!
Two out of the six leaders of the Rhythrai, Daymon and Celeste, while looking very similar, are not in fact related! Not even dating. Just really good friends. They man the main center planet of their galaxy, and are both considered "sweet" Rhythrai, based off of Devil's food cake and Angel food cake respectively. Daymon takes the role of the shy reserved one, usually taking a step back from socializing, whereas Celeste is cheerful and energetic, preferring public appearances over paperwork and meetings. Both are kind of odd looking, Daymon having an oddly high number of horns and a weirdly spikey tail, but Celeste is actually even weirder, being born without horns or a tail at all! It's practically unheard of- though her public image is still pretty decent, despite.

Normal Rhythrai do not have wings!
This is a strange trait that manifests in Rhythrai with large amounts of power. Those include the six leader Rhythrai as none else are known to actually have enough control to have the condition. Once a Rhythrai is promoted to the appropriate rank, they'll grow wings and take their place as leader. No one knows why it happens, but it's seen as an important cultural moment, marking the new leader accepting their position.