Welcome to the island city of Galilei, where genes are commodities, chimera are the apex of human potential, and the most dangerous weapons lie hidden beneath the skin.

 

Luna Cobalt locks away the claws and fangs to protect her twin brother Lio, her only remaining family, but she hates hiding her chimeric blood. After recklessly revealing her hidden trait to a dangerous yet charming masked man, she can't deny the spark between them. Thorne sees Luna for who she is, darkness and all. Despite the risk, he presents an irresistible distraction.

 

As heat rises between Luna and Thorne, tension between humans and chimera in Galilei turns volatile. Lio, who prefers his human facade to his true chimera nature, becomes embroiled in the conflict. When he vanishes, Luna exposes her suppressed chimeric traits to rescue him from exploitation by Galilei's genetic engineers. Luna will stop at nothing to save Lio, even if it costs her everything she ever wanted.