The White Cat's Revenge as Plotted from the Dragon King's Lap: Volume 7 by Kureha

Now that the issues in the Nation of the Spirit King are over, Ruri Morikawa spends her days in peace with her partner Jade in the Nation of the Dragon King. One day, a letter arrives from the Imperial Nation detailing that Emperor Adularia has fallen ill and needs the elixir made from dragon blood, said to cure any and all ailments. Jade sends her the medicine without hesitation, but it proves to be ineffective, and Adularia’s condition continues to worsen. Curiously, her symptoms bear an uncanny resemblance to the illness that took the life of Quartz’s mate, Seraphie. What could this mean? Find out in the magical seventh installment of The White Cat’s Revenge as Plotted from the Dragon King’s Lap!