Attacked by the Celliens, Serval and her party decide to fight the Celliens. In the fight, Serval and Caracal are wounded, but are healed by the singing voice of Crested Ibis. As a result, they succeed in defeating the Celliens; knowing that Towa's power has transformed Crested Ibis's singing voice into something good, Crested Ibis decides to travel with Towa.