Back in Lune after his brush with war in Inverey, Ryo happily immerses himself in alchemy, his number one obsession. Unfortunately, a request from the guild master throws a wrench in his plan. The job? To join a diplomatic mission to establish formal relations with neighboring Twilightland, a country shrouded in mystery.

Ride around in a carriage while drinking coffee? Sounds easy enough! Ryo thinks. Unfortunately for him, a coup breaks out in the capital of Thebes, and his allies are imprisoned for treason! Then he discovers that the key to everything lies with Shinso, a man whom even the nobility fear...

Conspiracies abound across the continent, embroiling all its major powers, and the Inferno Magician maneuvers in secret. The story rushes toward its climax as Ryo and his friends cut through the intricate web of intrigue! The adventures of the strongest, freewheeling water magician continue in this dramatic sixth volume!