Her Gilded Cage Revenge

Princess Serena Valerius marries Prince Kael Vaughn, helping him steal the City Defense Map. She discovers Kael's affair with Isabelle Sinclair and his plot to attack Ardoria. Kael tricks her into giving him the map, destroys Ardoria, murders its king. Serena imprisoned. She feigns conceding title to Isabelle Sinclair to escape. Using Phoenix-Crest Jade Pendant, she commands Shadow Guards, allies with Prince Julian Grant. She kills Kael Vaughn. As empress, she rules with Julian Grant.