Alfred and his entourage are sent to Juin Island to investigate a claim that the missing Princess Marielle is living in exile there. Matters are complicated when Thalia and Elva also arrive to determine if the so-called princess is genuine.

People throughout the kingdom learn that Princess Marielle is alive, and gather in Olivier's Dominion to join the Liberation Army. Before going to war, however, Adelheid has Marielle visit an unusual young girl who presents the princess with a test.