Very wordy, but here me out

There are three classes.

Third class is the working. They do the dirty jobs and have a high risk of dying at a young age. They wear the red bands. If seen without them, execution.

Second class is the shop owners and traders. They have it a bit better off, but still dangerous. Rebels are more likely to be found in this class. They wear grey. Seen without them, punishment.

First class are the royals and important people. They live in luxury and step on everyone else. They have their noses too high up to notice below them. They wear gold bands. Seen without them, warning. Second warning, exile to their home for a week. Third, sent to second class.

Adam of the Sky family is next in line to lead the kingdom, and to unite with another family. He's given a choice between some. The Star family, the Magic family, or the Music family.

At this moment, a rebellion is being ordered. Solace, a second class artist, is leading a group calling themselves Freedom Fighters. Alongside him is Brotato, a baker, and Bodil, a third class engineer.

In the night, they storm the sky castle and kill everyone inside. Taking Adam as hostage. The other first class families now have to fight to save the Sky family from disappearing.

Which means sending their sons to find him.

Jason from the Star family, Seto from the Magic family, and Ty from the Music family