A silent woman awakens on the edge of a dusty wasteland. A Lady Fencer leads a journey to claim a powerful sword. A young Guide-in-training takes his unwanted follower along while he attempts his master’s trial. Their goals all converge in the mysterious ruined city, from which no one has ever returned alive.

The stories of Singer and her friends continue three years later. Nothing will grow in the ruined Songbird River City, despite Singer's best efforts. What's worse, her energy dissipates every time she tries to use it lately. When Katherina arrives with news of Farien's disappearance and a mysterious jungle springing up to the south, both Singer and Katherina must embark on journeys to the far corners of the continent.

Three heroes, three conflicts. The fate of Songbird River City hangs in the balance. Katherina, the Greatest Fencer in the Realm, faces false charges of murdering Klessia’s Master Magician. Serille, the amateur Magician, struggles for a chance to retaliate against those who attacked the Guild of her heart. And Singer, beloved leader of Songbird River City, returns to her homeland after defeating a rogue dragon to find her city in smoldering ruins. Her greatest fear has come true: her sword, the energy source for her city, has fallen into the hands of the evil Sorcerers in Chirlinia, and with it, the ability to control her enormous robotic Search-and-Rescue machines. And as the three friends journey to different corners of the Two Continents, the Sorcerers’ attempts the sow dissonance between them may yet work…