Rebellion is at hand as Shusei demands Emperor Shohi give up the throne! His Majesty has ten days to decide between abdication or civil war, as even the imperial guard stands against him. Yet in order to protect the country, Shohi chooses the path of war. Meanwhile, Rimi ponders the meaning of what Tama said at the Autumn Garden... And everything comes to a halt when Shohi suddenly falls ill. Rimi suspects poison, but could it be related to the black vial that Hakurei carries?! The world shakes in this exciting tenth volume!