Aiden and Ky

Brianne, daughter of the ruling family, has never met a Shareem. Then she spies Aiden, a Level One, in a coffee bar in the working-class part of town. Unknown to Brianne, her bodyguards arrest Aiden for even looking at her, and Aiden is locked away, scheduled to be terminated.
 
Ky, a Level Three and Aiden's closest friend, is furious. He tries to extract Aiden, which only ends up in him being arrested alongside him. 
 
Brianne, horrified, has them freed, but Ky wants to teach Lady Brianne a lesson to make up for her putting Aiden in so much danger. Aiden, worried about Ky's volatile nature, goes with him, and Brianne finds herself alone in a train car with two Shareem who have many things on their minds.
 
The incident has also forced Ky’s feelings he’s kept hidden for Aiden to surface. Such things are forbidden to Shareem, as he learned the hard way years ago.
 
When Brianne is with them, everything seems to be fine. But when Ky starts to give in to the longing he's had for years, old danger resurfaces, which he knows could mean the end of his life.