Her residence is in chaos, her mother disappears, and now she has to be a prisoner of a prince. As an Omega, of course, there's not much Cassie can do. Her meeting with Prince Cedric caused many problems, especially when she found out that her mother had entrusted her with a magical blue sapphire stone. Cassie's life was in danger. But Cassie fell in love, and so did the Prince. How do they solve family problems amidst the heat of burning love between the two of them? Should they fight each other or work together? This is the story of Cassandra Asiel, or Cassie, who will fight to defend her love and family.