The fourth installment of the Crown series follows brother and sister Ren and Mahiro as they grow ever closer — dangerously close, in fact, for a brother and sister. Ren and Mahiro must face their growing passions, even as they battle against the evil forces that seem to plague in this chapter of their tale, Queen Phoebula devises a malicious plan of attack. As our pair of heroes fight Phoebula's efforts and struggle with their changing relationship, Ren sends Ange off on a secret mission to discover a long-buried truth about the pair's mother, which may change things between them for good. From a noted anime author and illustrator comes an exciting, daring new title in a popular series.