The White Cat's Revenge as Plotted from the Dragon King's Lap Novel Volume 3 was written by Kureha and illustrated by Yamigo.

Now that the war with the Kingdom of Nadasha has come to a close, Ruri Morikawa can kick back and enjoy the rest of her days in peace...that is, until another nation's Beloved is attacked! The Nation of the Dragon King finds itself forced to take the Beloveds of two other nations under their protection.

As if breaking with convention isn't enough, the two are also a handful! One of them is spoiled and self-centered, while the other is hard-headed and strong-willed. Can Ruri and the others handle both these two unexpected guests, as well as the assassins targeting the Beloveds?!