In order to save Azure's life, Nina, the girl with lapis lazuli-colored eyes, goes to Galgada disguised as a princess to be married. She grows close to Galgada's Prince Sett, who doesn't know love, and decides to spend her life with him, but then Azure arrives disguised as a messenger from Fortna! When everything comes to a head, Nina's 'lady-in-waiting' Hikami poisons Sett but fails to kill him. Used by Hikami and left alone at the scene, Nina is sent to Griffigeld Prison as a suspected assassin. After she meets General Holt there, the two join forces to confront the warden, and Azure once again arrives when she gets in trouble!!